There are 2054 airports in United States with scheduled flights. The biggest airport in United States is John F Kennedy International Airport with flights to 162 destinations in 74 airlines.
There are 4 leading airlines, American (American Airlines) is the biggest airline with flights to 432 destinations, followed by United (United Airlines) offering flights to 430 destinations. And Delta (Delta Air Lines) along U S Air (US Airways) with 351 and 337 respectively.
At the list below you will find all information related to the airports in United States like flight routes and scheduled arrivals and departures on that airport.
Specific flight routes are available and you can also find other airports nearby to better find ways to prepare your trip.
All United States airports:
| Code | Country | Airport Name |
| AAF | United States | Apalachicola, FL – Apalachicola Municipal |
| ABE | United States | Allentown, PA – Lehigh Valley Intl. |
| ABI | United States | Abilene, TX – Abilene Regional |
| ABL | United States | Ambler, AK – Ambler |
| ABQ | United States | Albuquerque, NM – Albuquerque Intl. |
| ABR | United States | Aberdeen, SD – Aberdeen Regional |
| ABY | United States | Albany, GA – Southwest Georgia Regional |
| ACB | United States | Bellaire, MI – Antrim Cnty |
| ACK | United States | Nantucket, MA – Nantucket Memorial |
| ACT | United States | Waco, TX – Waco Regional |
| ACV | United States | Eureka/Arcata, CA – Arcata-Eureka |
| ACY | United States | Atlantic City, NJ – Atlantic City Intl. |
| ADG | United States | Adrian, MI – Lenawee Cnty |
| ADK | United States | Adak Isl, AK – Adak |
| ADM | United States | Ardmore, OK – Ardmore Munl |
| ADQ | United States | Kodiak, AK – Kodiak Benny Benson State |
| ADR | United States | Andrews, SC – Robert F. Swinnie |
| ADS | United States | Dallas, TX – Addison |
| ADT | United States | Ada, OK – Ada Municipal |
| ADW | United States | Camp Springs, MD – Andrews Field (Andrews AFBase) |
| AEL | United States | Albert Lea, MN – Albert Lea Munl |
| AET | United States | Allakaket, AK – Allakaket |
| AEX | United States | Alexandria, LA – Alexandria Intl. |
| AFF | United States | Colorado Springs, CO – United States Air Force Academy Airfield |
| AFN | United States | Jaffrey, NH – Jaffrey –Silver Ranch |
| AFO | United States | Afton, WY – Afton Munl |
| AFW | United States | Fort Worth, TX – Fort Worth Alliance |
| AGC | United States | Pittsburgh, PA – Allegheny County |
| AGN | United States | Angoon, AK – Angoon Seaplane Base |
| AGO | United States | Magnolia, AR – Magnolia Munl |
| AGS | United States | Augusta, GA – Augusta Regional |
| AHC | United States | Herlong, CA – Amedee AAField |
| AHD | United States | Ardmore, OK – Ardmore Downtown Executive |
| AHF | United States | Arapahoe, NE – Arapahoe Munl |
| AHH | United States | Amery, WI – Amery Munl |
| AHM | United States | Ashland, OR – Ashland Munl |
| AHN | United States | Athens, GA – Athens-Ben Epps |
| AIA | United States | Alliance, NE – Alliance Municipal |
| AID | United States | Anderson, IN – Anderson Municipal |
| AIK | United States | Aiken, SC – Aiken Munl |
| AIN | United States | Fort Wainwright, AK – Wainwright |
| AIO | United States | Atlantic, IA – Atlantic Munl |
| AIV | United States | Aliceville, AL – George Downer |
| AIY | United States | Atlantic City, NJ – Atlantic City Munl (Bader Field) (closed 2006) |
| AIZ | United States | Lake Ozark, MO – Lee C. Fine Memorial |
| AKB | United States | Atka, AK – Atka |
| AKC | United States | Akron, OH – Akron Fulton Intl |
| AKI | United States | Akiak, AK – Akiak |
| AKK | United States | Akhiok, AK – Akhiok |
| AKN | United States | King Salmon, AK – King Salmon |
| AKO | United States | Akron, CO – Colorado Plains Rgnl |
| AKP | United States | Anaktuvuk Pass, AK – Anaktuvuk Pass |
| ALB | United States | Albany, NY – Albany County |
| ALE | United States | Alpine, TX – Alpine–Casparis Munl |
| ALI | United States | Alice, TX – Alice Intl. |
| ALM | United States | Alamogordo, NM – Alamogordo-White Sands Regional |
| ALN | United States | Alton, IL – Saint Louis Regional |
| ALO | United States | Waterloo, IA – Waterloo Municipal |
| ALS | United States | Alamosa, CO – San Luis Valley Regional |
| ALW | United States | Walla Walla, WA – Walla Walla Regional |
| ALX | United States | Alexander City, AL – Thomas C. Russell Field |
| ALZ | United States | Lazy Bay, AK – Alitak Seaplane Base |
| AMA | United States | Amarillo, TX – Rick Husband Amarillo Intl. |
| AMK | United States | Durango, CO – Animas Air Park |
| AMN | United States | Alma, MI – Gratiot Community |
| AMW | United States | Ames, IA – Ames Municipal |
| ANB | United States | Anniston, AL – Anniston Metropolitan |
| ANC | United States | Anchorage, AK – Anchorage Intl. |
| AND | United States | Anderson, SC – Anderson County |
| ANI | United States | Aniak, AK – Aniak |
| ANN | United States | Annette, AK – Annette Isl |
| ANP | United States | Annapolis, MD – Lee |
| ANQ | United States | Angola, IN – Tri-State Steuben Cnty |
| ANV | United States | Anvik, AK – Anvik |
| ANW | United States | Ainsworth, NE – Ainsworth Rgnl |
| ANY | United States | Anthony, KS – Anthony Munl |
| AOH | United States | Lima, OH – Lima Allen County |
| AOO | United States | Altoona, PA – Altoona-Blair County |
| AOS | United States | Amook Bay, AK – Amook Bay Seaplane Base |
| APA | United States | Denver, CO – Arapahoe County |
| APC | United States | Napa, CA – Napa County |
| APF | United States | Naples, FL – Naples Municipal |
| APG | United States | Aberdeen Proving Ground, MD – Phillips AAField |
| APH | United States | Fort A.P. Hill, VA – A.P. Hill AAField |
| APN | United States | Alpena, MI – Alpena County Regional |
| APT | United States | Jasper, TN – Marion Cnty (Brown Field) |
| APV | United States | Apple Valley, CA – Apple Valley |
| AQY | United States | Girdwood, AK – Girdwood |
| ARA | United States | New Iberia, LA – Acadiana Regional |
| ARB | United States | Ann Arbor, MI – Ann Arbor Municipal |
| ARC | United States | Arctic Village, AK – Arctic Village |
| ARE | United States | Arecibo, PR – Antonio (Nery) Juarbe Pol |
| ARG | United States | Walnut Ridge, AR – Walnut Ridge Rgnl |
| ART | United States | Watertown, NY – Watertown Intl. |
| ARV | United States | Minocqua/Woodruff, WI – Lakeland-Noble F Lee Memorial Field |
| ASE | United States | Aspen, CO – Aspen-Pitkin County |
| ASH | United States | Nashua, NH – Boire Field |
| ASL | United States | Marshall, TX – Harrison County |
| ASN | United States | Talladega, AL – Talladega Munl |
| ASQ | United States | Austin, NV – Austin |
| AST | United States | Astoria, OR – Clatsop County |
| ASX | United States | Ashland, WI – John F Kennedy Memorial |
| ASY | United States | Ashley, ND – Ashley Munl |
| ATE | United States | Antlers, OK – Antlers Munl |
| ATK | United States | Atqasuk, AK – Atqasuk Edward Burnell Sr. Memorial |
| ATL | United States | Atlanta, GA – Hartsfield-Jackson Atlanta Intl. |
| ATO | United States | Athens/Albany, OH – Ohio University (Snyder Field) |
| ATS | United States | Artesia, NM – Artesia Munl |
| ATT | United States | Atmautluak, AK – Atmautluak |
| ATU | United States | Attu, AK – Casco Cove Coast Guard Station |
| ATW | United States | Appleton, WI – Appleton Intl. |
| ATY | United States | Watertown, SD – Watertown Municipal |
| AUG | United States | Augusta, ME – Augusta State |
| AUK | United States | Alakanuk, AK – Alakanuk |
| AUM | United States | Austin, MN – Austin Munl |
| AUN | United States | Auburn, CA – Auburn Municipal |
| AUO | United States | Auburn, AL – Auburn-Opelika Robert G Pitts |
| AUS | United States | Austin, TX – Austin-Bergstrom Intl. |
| AUW | United States | Wausau, WI – Wausau Municipal |
| AUZ | United States | Aurora, IL – Aurora Munl |
| AVL | United States | Asheville, NC – Asheville Regional |
| AVO | United States | Avon Park, FL – Avon Park Executive |
| AVP | United States | Wilkes-Barre/Scranton, PA – Wilkes-Barre/Scranton Intl. |
| AVW | United States | Tucson, AZ – Marana Rgnl |
| AVX | United States | Avalon, CA – Catalina |
| AWK | United States | Wake Isl, – Wake Isl Airfield |
| AWM | United States | West Memphis, AR – West Memphis Municipal |
| AXB | United States | Alexandria Bay, NY – Maxson Airfield |
| AXG | United States | Algona, IA – Algona Munl |
| AXN | United States | Alexandria, MN – Chandler Field |
| AXS | United States | Altus, OK – Altus/Quartz Mountain Rgnl |
| AXV | United States | Wapakoneta, OH – Neil Armstrong |
| AXX | United States | Angel Fire, NM – Angel Fire |
| AYS | United States | Waycross, GA – Waycross-Ware County |
| AZA | United States | Phoenix, AZ – Phoenix-Mesa Gateway |
| AZO | United States | Kalamazoo, MI – Kalamazoo-Battle Creek Intl. |
| BAB | United States | Marysville, CA – Beale AFBase |
| BAD | United States | Bossier City, LA – Barksdale AFBase |
| BAF | United States | Westfield/Springfield, MA – Westfield-Barnes Rgnl |
| BAM | United States | Battle Mountain, NV – Battle Mountain (Lander Cnty) |
| BBB | United States | Benson, MN – Benson Munl |
| BBC | United States | Bay City, TX – Bay City Munl |
| BBD | United States | Brady, TX – Curtis Field |
| BBW | United States | Broken Bow, NE – Broken Bow Munl |
| BBX | United States | Philadelphia, PA – Wings Field |
| BCB | United States | Blacksburg, VA – Virginia Tech/Montgomery Executive |
| BCC | United States | Bear Creek, AK – Bear Creek 3 |
| BCE | United States | Bryce Canyon, UT – Bryce Canyon |
| BCS | United States | Belle Chasse, LA – Southern Seaplane |
| BCT | United States | Boca Raton, FL – Boca Raton |
| BDE | United States | Baudette, MN – Baudette Intl |
| BDF | United States | Bradford, IL – Rinkenberger RLA |
| BDG | United States | Blanding, UT – Blanding Munl |
| BDL | United States | Windsor Locks/Hartford, CT – Bradley Intl. |
| BDR | United States | Bridgeport, CT – Igor I Sikorsky Memorial |
| BDX | United States | Broadus, MT – Broadus |
| BDY | United States | Bandon, OR – Bandon State |
| BEC | United States | Wichita, KS – Beech Factory |
| BED | United States | Bedford, MA – Lawrence G. Hanscom Field |
| BEH | United States | Benton Harbor, MI – Southwest Michigan Regional |
| BET | United States | Bethel, AK – Bethel |
| BFD | United States | Bradford, PA – Bradford Regional |
| BFF | United States | Scottsbluff, NE – Western Nebraska Regional |
| BFG | United States | Glen Canyon, UT – Bullfrog Basin |
| BFI | United States | Seattle, WA – King County Intl. |
| BFK | United States | Aurora, CO – Buckley AFBase |
| BFL | United States | Bakersfield, CA – Meadows Field |
| BFM | United States | Mobile, AL – Mobile Downtown |
| BFP | United States | Beaver Falls, PA – Beaver Cnty |
| BFR | United States | Bedford, IN – Virgil I Grissom Municipal |
| BFT | United States | Beaufort, SC – Beaufort Cnty |
| BGD | United States | Borger, TX – Hutchinson Cnty |
| BGE | United States | Bainbridge, GA – Decatur Cnty Industrial Air Park |
| BGM | United States | Binghamton, NY – Greater Binghamton |
| BGQ | United States | Big Lake, AK – Big Lake |
| BGR | United States | Bangor, ME – Bangor Intl. |
| BGT | United States | Bagdad, AZ – Bagdad |
| BHB | United States | Bar Harbor, ME – Hancock County-Bar Harbor |
| BHM | United States | Birmingham, AL – Birmingham-Shuttlesworth Intl. |
| BID | United States | Block Isl, RI – Block Island State |
| BIE | United States | Beatrice, NE – Beatrice Munl |
| BIF | United States | Fort Bliss/El Paso, TX – Biggs AAField |
| BIG | United States | Fort Greely/Delta Junction, AK – Allen AAField |
| BIH | United States | Bishop, CA – Bishop |
| BIL | United States | Billings, MT – Logan Intl. |
| BIS | United States | Bismarck, ND – Bismarck Municipal |
| BIX | United States | Biloxi, MS – Keesler AFBase |
| BJC | United States | Denver, CO – Rocky Mountain Metropolitan |
| BJI | United States | Bemidji, MN – Bemidji-Beltrami County |
| BJJ | United States | Wooster, OH – Wayne County |
| BKC | United States | Buckland, AK – Buckland |
| BKD | United States | Breckenridge, TX – Stephens Cnty |
| BKE | United States | Baker City, OR – Baker City Munl |
| BKF | United States | Brooks Camp, AK – Lake Brooks SPBase |
| BKG | United States | Branson, MO – Branson |
| BKH | United States | Kekaha, HI – Barking Sands PMRF |
| BKL | United States | Cleveland, OH – Burke Lakefront |
| BKT | United States | Blackstone, VA – Blackstone AAField (Allen C. Perkinson) |
| BKW | United States | Beckley, WV – Raleigh County Memorial |
| BKX | United States | Brookings, SD – Brookings Rgnl |
| BLD | United States | Boulder City, NV – Boulder City Munl |
| BLF | United States | Bluefield, WV – Mercer Cnty |
| BLH | United States | Blythe, CA – Blythe |
| BLI | United States | Bellingham, WA – Bellingham Intl. |
| BLM | United States | Belmar/Farmingdale, NJ – Monmouth Executive |
| BLU | United States | Emigrant Gap, CA – Blue Canyon–Nyack |
| BLV | United States | Belleville, IL – MidAmerica St. Louis |
| BMC | United States | Brigham City, UT – Brigham City |
| BMG | United States | Bloomington, IN – Monroe County |
| BMI | United States | Bloomington, IL – Central Illinois Regional Airport at Bloomington-Normal |
| BML | United States | Berlin, NH – Berlin Regional |
| BMT | United States | Beaumont, TX – Beaumont Municipal |
| BMX | United States | Big Mountain, AK – Big Mountain Air Force Station |
| BNA | United States | Nashville, TN – Nashville Intl. |
| BNF | United States | Baranof, AK – Warm Springs Bay SPBase |
| BNG | United States | Banning, CA – Banning Municipal |
| BNL | United States | Barnwell, SC – Barnwell Rgnl |
| BNO | United States | Burns, OR – Burns Munl |
| BNW | United States | Boone, IA – Boone Munl |
| BOI | United States | Boise, ID – Boise Air Terminal |
| BOK | United States | Brookings, OR – Brookings |
| BOS | United States | Boston, MA – Logan Intl. |
| BOW | United States | Bartow, FL – Bartow Munl |
| BPI | United States | Big Piney, WY – Miley Memorial Field |
| BPT | United States | Beaumont/Port Arthur, TX – Jack Brooks Regional |
| BQK | United States | Brunswick, GA – Brunswick Golden Isles |
| BQN | United States | Aguadilla, PR – Rafael Hernandez |
| BQV | United States | Gustavus, AK – Bartlett Cove SPBase |
| BRD | United States | Brainerd, MN – Brainerd Lakes Regional |
| BRL | United States | Burlington, IA – Burlington Municipal |
| BRO | United States | Brownsville, TX – Brownsville-South Padre Island Intl. |
| BRW | United States | Barrow, AK – Wiley Post-Will Rogers Memorial |
| BRY | United States | Bardstown, KY – Samuels Field |
| BSF | United States | Camp Pohakuloa, HI – Bradshaw AAField |
| BSQ | United States | Bisbee, AZ – Bisbee Munl |
| BSW | United States | Boswell Bay, AK – Boswell Bay |
| BTF | United States | Bountiful, UT – Sky Park |
| BTI | United States | Barter Isl, AK – Barter Island LRRS |
| BTL | United States | Battle Creek, MI – W K Kellogg |
| BTM | United States | Butte, MT – Bert Mooney |
| BTN | United States | Bennettsville, SC – Marlboro Cnty Jetport |
| BTP | United States | Butler, PA – Butler-Graham |
| BTR | United States | Baton Rouge, LA – Baton Rouge Metropolitan |
| BTT | United States | Bettles, AK – Bettles |
| BTV | United States | Burlington, VT – Burlington Intl. |
| BTY | United States | Beatty, NV – Beatty |
| BUB | United States | Burwell, NE – Cram Field |
| BUF | United States | Buffalo, NY – Greater Buffalo Intl. |
| BUM | United States | Butler, MO – Butler Memorial |
| BUR | United States | Burbank, CA – Burbank Bob Hope |
| BVO | United States | Bartlesville, OK – Bartlesville Munl |
| BVU | United States | Beluga, AK – Beluga |
| BVX | United States | Batesville, AR – Batesville Regional |
| BVY | United States | Beverly, MA – Beverly Municipal |
| BWC | United States | Brawley, CA – Brawley Munl |
| BWD | United States | Brownwood, TX – Brownwood Rgnl |
| BWG | United States | Bowling Green, KY – Bowling Green-Warren County Regional |
| BWI | United States | Baltimore, MD – Baltimore-Washington Intl. |
| BWL | United States | Blackwell, OK – Blackwell–Tonkawa Munl |
| BWM | United States | Bowman, ND – Bowman Munl |
| BXA | United States | Bogalusa, LA – George R. Carr Memorial Air Field |
| BXK | United States | Buckeye, AZ – Buckeye Munl |
| BXS | United States | Borrego Springs, CA – Borrego Valley |
| BYA | United States | Boundary, AK – Boundary |
| BYG | United States | Buffalo, WY – Johnson Cnty |
| BYH | United States | Blytheville, AR – Arkansas Intl. |
| BYI | United States | Burley, ID – Burley Munl |
| BYS | United States | Barstow/Fort Irwin, CA – Bicycle Lake AAField (Fort Irwin) |
| BYW | United States | Blakely, WA – Blakely Isl |
| BZF | United States | Redding, CA – Benton Field |
| BZN | United States | Bozeman, MT – Gallatin Field |
| BZT | United States | Brazoria, TX – Eagle Air Park |
| CAD | United States | Cadillac, MI – Wexford County |
| CAE | United States | Columbia, SC – Columbia Metropolitan |
| CAK | United States | Akron/Canton, OH – Akron-Canton Regional |
| CAO | United States | Clayton, NM – Clayton Munl Airpark |
| CAR | United States | Caribou, ME – Caribou Munl |
| CBE | United States | Cumberland, MD – Greater Cumberland Regional |
| CBF | United States | Council Bluffs, IA – Council Bluffs Munl |
| CBK | United States | Colby, KS – Colby Munl (Shalz Field) |
| CBM | United States | Columbus, MS – Columbus AFBase |
| CCB | United States | Upland, CA – Cable |
| CCG | United States | Crane, TX – Crane Cnty |
| CCR | United States | Concord, CA – Buchanan Field |
| CCY | United States | Charles City, IA – Northeast Iowa Rgnl |
| CDB | United States | Cold Bay, AK – Cold Bay |
| CDC | United States | Cedar City, UT – Cedar City Regional |
| CDH | United States | Camden, AR – Harrell Field |
| CDK | United States | Cedar Key, FL – George T. Lewis |
| CDL | United States | Candle, AK – Candle 2 |
| CDN | United States | Camden, SC – Woodward Field |
| CDR | United States | Chadron, NE – Chadron Municipal |
| CDS | United States | Childress, TX – Childress Munl |
| CDV | United States | Cordova, AK – Merle K. (Mudhole) Smith |
| CDW | United States | Caldwell, NJ – Essex County |
| CEA | United States | Wichita, KS – Cessna Aircraft Field |
| CEC | United States | Crescent City, CA – Jack Mc Namara Field |
| CEF | United States | Springfield/Chicopee, MA – Westover Air Reserve Base / Metropolitan |
| CEM | United States | Central, AK – Central |
| CEU | United States | Clemson, SC – Clemson-Oconee County |
| CEV | United States | Connersville, IN – Mettel Field |
| CEW | United States | Crestview, FL – Bob Sikes |
| CEX | United States | Chena Hot Springs, AK – Chena Hot Springs |
| CEY | United States | Murray, KY – Murray-Calloway County |
| CEZ | United States | Cortez, CO – Cortez-Montezuma County |
| CFD | United States | Bryan, TX – Coulter Field |
| CFT | United States | Clifton, AZ – Greenlee Cnty |
| CFV | United States | Coffeyville, KS – Coffeyville Munl |
| CGA | United States | Craig, AK – Craig Seaplane Base |
| CGE | United States | Cambridge, MD – Cambridge–Dorchester |
| CGF | United States | Cleveland, OH – Cuyahoga Cnty |
| CGI | United States | Cape Girardeau, MO – Cape Girardeau Municipal |
| CGS | United States | College Park, MD – College Park |
| CGZ | United States | Casa Grande, AZ – Casa Grande Municipal |
| CHA | United States | Chattanooga, TN – Lovell Field |
| CHD | United States | Chandler, AZ – Williams Air Force Base |
| CHI | United States | Chicago, IL – All airports |
| CHK | United States | Chickasha, OK – Chickasha Munl |
| CHL | United States | Challis, ID – Challis |
| CHO | United States | Charlottesville, VA – Charlottesville-Albemarle |
| CHP | United States | Circle Hot Springs, AK – Circle Hot Springs |
| CHS | United States | Charleston, SC – Charleston Intl. |
| CHU | United States | Chuathbaluk, AK – Chuathbaluk |
| CHZ | United States | Chiloquin, OR – Chiloquin State |
| CIC | United States | Chico, CA – Chico Municipal |
| CID | United States | Cedar Rapids, IA – The Eastern Iowa |
| CIG | United States | Craig, CO – Craig–Moffat |
| CIK | United States | Chalkyitsik, AK – Chalkyitsik |
| CIL | United States | Council, AK – Council |
| CIN | United States | Carroll, IA – Arthur N. Neu |
| CIR | United States | Cairo, IL – Cairo Rgnl |
| CIU | United States | Sault Ste Marie, MI – Chippewa County Intl. |
| CKA | United States | Cherokee, OK – Kegelman Air Force Auxiliary Field |
| CKB | United States | Clarksburg, WV – North Central West Virginia |
| CKD | United States | Crooked Creek, AK – Crooked Creek |
| CKE | United States | Clear Lake, CA – Clear Lake |
| CKM | United States | Clarksdale, MS – Fletcher Field |
| CKN | United States | Crookston, MN – Crookston Munl (Kirkwood Field) |
| CKR | United States | Crane, WA – Crane Isl Airstrip |
| CKU | United States | Cordova, AK – Cordova Munl |
| CKV | United States | Clarksville, TN – Outlaw Field |
| CKX | United States | Chicken, AK – Chicken |
| CLD | United States | Carlsbad, CA – McClellan-Palomar |
| CLE | United States | Cleveland, OH – Cleveland-Hopkins Intl. |
| CLG | United States | Coalinga, CA – New Coalinga Munl |
| CLI | United States | Clintonville, WI – Clintonville Munl |
| CLK | United States | Clinton, OK – Clinton Rgnl |
| CLL | United States | College Station, TX – Easterwood Field |
| CLM | United States | Port Angeles, WA – William R Fairchild Intl. |
| CLP | United States | Clark’s Point, AK – Clarks Point |
| CLR | United States | Calipatria, CA – Cliff Hatfield Memorial |
| CLS | United States | Chehalis, WA – Chehalis-Centralia |
| CLT | United States | Charlotte, NC – Charlotte Douglas Intl. |
| CLU | United States | Columbus, IN – Columbus Bakalar Municipal |
| CLW | United States | Clearwater, FL – Clearwater Air Park |
| CMH | United States | Columbus, OH – John Glenn Columbus Intl. |
| CMI | United States | Champaign, IL – University of Illinois Willard |
| CMX | United States | Hancock, MI – Houghton County Memorial |
| CMY | United States | Sparta, WI – Sparta/Fort McCoy |
| CNE | United States | Canon City, CO – Fremont Cnty |
| CNH | United States | Claremont, NH – Claremont Munl |
| CNK | United States | Concordia, KS – Blosser Munl |
| CNM | United States | Carlsbad, NM – Cavern City Air Terminal |
| CNO | United States | Chino, CA – Chino |
| CNU | United States | Chanute, KS – Chanute Martin Johnson |
| CNW | United States | Waco, TX – TSTC Waco |
| CNY | United States | Moab, UT – Canyonlands Field |
| COA | United States | Columbia, CA – Columbia |
| COD | United States | Cody, WY – Yellowstone Regional |
| COE | United States | Coeur d’Alene, ID – Coeur d’Alene |
| COF | United States | Cocoa Beach, FL – Patrick AFBase |
| COI | United States | Merritt, FL – Merritt Island |
| COM | United States | Coleman, TX – Coleman Munl |
| CON | United States | Concord, NH – Concord Municipal |
| COP | United States | Cooperstown, NY – Cooperstown-Westville |
| COS | United States | Colorado Springs, CO – Colorado Springs |
| COT | United States | Cotulla, TX – Cotulla–La Salle Cnty |
| COU | United States | Columbia, MO – Columbia Regional |
| CPM | United States | Compton, CA – Compton/Woodley |
| CPR | United States | Casper, WY – Casper-Natrona County Intl. |
| CPS | United States | Cahokia/St. Louis, IL – Saint Louis Downtown – Parks |
| CPX | United States | Culebra, PR – Benjamin Rivera Noriega |
| CRE | United States | Myrtle Beach, SC – Grand Strand |
| CRG | United States | Jacksonville, FL – Craig Municipal |
| CRO | United States | Corcoran, CA – Corcoran |
| CRP | United States | Corpus Christi, TX – Corpus Christi Intl. |
| CRS | United States | Corsicana, TX – C. David Campbell Field (Corsicana Munl) |
| CRT | United States | Crossett, AR – Z. M. Jack Stell Field |
| CRW | United States | Charleston, WV – Yeager |
| CRX | United States | Corinth, MS – Roscoe Turner |
| CSE | United States | Crested Butte, CO – Buckhorn Ranch |
| CSG | United States | Columbus, GA – Columbus |
| CSL | United States | San Luis Obispo, CA – All airports |
| CSM | United States | Clinton, OK – Clinton-Sherman |
| CSN | United States | Carson City, NV – Carson |
| CSQ | United States | Creston, IA – Creston Munl |
| CSV | United States | Crossville, TN – Crossville Memorial-Whitson Field |
| CTB | United States | Cut Bank, MT – Cut Bank Munl |
| CTH | United States | Coatesville, PA – Chester Cnty G. O. Carlson |
| CTK | United States | Canton, SD – Canton Munl |
| CTO | United States | Calverton, NY – Calverton Executive Airpark |
| CTW | United States | Cottonwood, AZ – Cottonwood |
| CTX | United States | Cortland, NY – Cortland Cnty/Chase Field |
| CTY | United States | Cross City, FL – Cross City |
| CTZ | United States | Clinton, NC – Clinton–Sampson Cnty |
| CUB | United States | Columbia, SC – Jim Hamilton–L.B. Owens |
| CUH | United States | Cushing, OK – Cushing Munl |
| CUS | United States | Columbus, NM – Columbus Munl |
| CUX | United States | Corpus Christi, TX – Cuddihy Field |
| CVG | United States | Cincinnati, OH – Cincinnati/Northern Kentucky Intl. |
| CVK | United States | Ash Flat, AR – Sharp County Rgnl |
| CVN | United States | Clovis, NM – Clovis Municipal |
| CVO | United States | Corvallis, OR – Corvallis Municipal |
| CVS | United States | Clovis, NM – Cannon AFBase |
| CWA | United States | Wausau, WI – Central Wisconsin |
| CWF | United States | Lake Charles, LA – Chennault Intl |
| CWI | United States | Clinton, IA – Clinton Municipal |
| CWS | United States | Center, WA – Center Isl |
| CWX | United States | Willcox, AZ – Cochise Cnty |
| CXC | United States | Chitina, AK – Chitina |
| CXF | United States | Coldfoot, AK – Coldfoot |
| CXL | United States | Calexico, CA – Calexico Intl. |
| CXO | United States | Houston, TX – Montgomery County |
| CYF | United States | Chefornak, AK – Chefornak |
| CYM | United States | Chatham, AK – Chatham SPBase |
| CYS | United States | Cheyenne, WY – Cheyenne |
| CYT | United States | Yakataga, AK – Yakataga |
| CZC | United States | Copper Centre, AK – Copper Centre |
| CZF | United States | Cape Romanzof, AK – Cape Romanzof LRRS |
| CZK | United States | Cascade Locks, OR – Cascade Locks State |
| CZN | United States | Chisana, AK – Chisana |
| CZO | United States | Chistochina, AK – Chistochina |
| CZP | United States | Cape Pole, AK – Cape Pole SPBase |
| CZT | United States | Carrizo Springs, TX – Dimmit Cnty |
| DAA | United States | Fort Belvoir, VA – Davison AAField |
| DAB | United States | Daytona Beach, FL – Daytona Beach Intl. |
| DAG | United States | Daggett, CA – Barstow-Daggett |
| DAL | United States | Dallas, TX – Dallas Love Field |
| DAN | United States | Danville, VA – Danville Regional |
| DAY | United States | Dayton, OH – James M Cox Dayton Intl. |
| DBN | United States | Dublin, GA – W. H. ‘Bud’ Barron |
| DBQ | United States | Dubuque, IA – Dubuque Regional |
| DBS | United States | Dubois, ID – Dubois Munl |
| DCA | United States | Arlington, DC – Ronald Reagan Washington National |
| DCK | United States | Dahl Creek, AK – Dahl Creek |
| DCU | United States | Decatur, AL – Pryor Field |
| DDC | United States | Dodge City, KS – Dodge City Regional |
| DEC | United States | Decatur, IL – Decatur |
| DEH | United States | Decorah, IA – Decorah Munl |
| DEN | United States | Denver, CO – Denver Intl. |
| DET | United States | Detroit, MI – Detroit City |
| DFI | United States | Defiance, OH – Defiance Memorial |
| DFW | United States | Dallas/Fort Worth, TX – Dallas/Fort Worth Intl. |
| DGL | United States | Douglas, AZ – Douglas Munl |
| DGN | United States | Dahlgren, VA – Naval Surface Warfare Center Dahlgren Division |
| DGW | United States | Douglas, WY – Converse Cnty |
| DHB | United States | Deer Harbor, WA – Deer Harbor Sea Plane Base |
| DHN | United States | Dothan, AL – Dothan Regional |
| DHT | United States | Dalhart, TX – Dalhart Munl |
| DIK | United States | Dickinson, ND – Dickinson Municipal |
| DJN | United States | Delta Junction, AK – Delta Junction |
| DKK | United States | Dunkirk, NY – Chautauqua Cnty/Dunkirk |
| DLF | United States | Del Rio, TX – Laughlin AFBase |
| DLG | United States | Dillingham, AK – Dillingham |
| DLH | United States | Duluth, MN – Duluth Intl. |
| DLL | United States | Dillon, SC – Dillon Cnty |
| DLN | United States | Dillon, MT – Dillon |
| DLS | United States | The Dalles, OR – Columbia Gorge Rgnl |
| DMA | United States | Tucson, AZ – Davis–Monthan AFBase |
| DMN | United States | Deming, NM – Deming Munl |
| DMO | United States | Sedalia, MO – Sedalia Memorial |
| DNL | United States | Augusta, GA – Daniel Field |
| DNN | United States | Dalton, GA – Dalton Municipal |
| DNS | United States | Denison, IA – Denison Munl |
| DNV | United States | Danville, IL – Vermilion County |
| DOV | United States | Dover, DE – Dover Air Force Base |
| DPA | United States | West Chicago, IL – DuPage |
| DPG | United States | Dugway, UT – Michael AAField |
| DRA | United States | Mercury, NV – Desert Rock |
| DRE | United States | Drummond, MI – Drummond Isl |
| DRF | United States | Drift River, AK – Drift River |
| DRG | United States | Deering, AK – Deering |
| DRI | United States | DeRidder, LA – Beauregard Rgnl |
| DRO | United States | Durango, CO – Durango-La Plata County |
| DRT | United States | Del Rio, TX – Del Rio Intl. |
| DRU | United States | Drummond, MT – Drummond |
| DSI | United States | Destin, FL – Destin Executive |
| DSM | United States | Des Moines, IA – Des Moines Intl. |
| DSV | United States | Dansville, NY – Dansville Munl |
| DTA | United States | Delta, UT – Delta Munl |
| DTH | United States | Death Valley, CA – Furnace Creek |
| DTL | United States | Detroit Lakes, MN – Detroit Lakes (Wething Field) |
| DTN | United States | Shreveport, LA – Shreveport Downtown |
| DTR | United States | Decatur, WA – Decatur Shores |
| DTT | United States | Detroit, MI – All airports |
| DTW | United States | Detroit, MI – Detroit Metropolitan Wayne County |
| DUA | United States | Durant, OK – Durant Rgnl –Eaker Field |
| DUC | United States | Duncan, OK – Halliburton Field |
| DUF | United States | Corolla, NC – Pine Isl |
| DUG | United States | Bisbee/Douglas, AZ – Bisbee Douglas Intl |
| DUJ | United States | DuBois, PA – Du Bois-Jefferson County |
| DUT | United States | Unalaska, AK – Unalaska |
| DVL | United States | Devils Lake, ND – Devils Lake Municipal |
| DVN | United States | Davenport, IA – Davenport Municipal |
| DVT | United States | Phoenix, AZ – Phoenix Deer Valley |
| DWH | United States | Houston, TX – David Wayne Hooks Memorial |
| DXE | United States | Madison, MS – Bruce Campbell Field |
| DXR | United States | Danbury, CT – Danbury Municipal |
| DYL | United States | Doylestown, PA – Doylestown |
| DYS | United States | Abilene, TX – Dyess AFBase |
| EAA | United States | Eagle, AK – Eagle |
| EAN | United States | Wheatland, WY – Phifer Airfield |
| EAR | United States | Kearney, NE – Kearney Municipal |
| EAT | United States | Wenatchee, WA – Pangborn Field |
| EAU | United States | Eau Claire, WI – Chippewa Valley Regional |
| EBS | United States | Webster City, IA – Webster City Munl |
| ECA | United States | East Tawas, MI – Iosco Cnty |
| ECG | United States | Elizabeth City, NC – Elizabeth City Regional |
| ECP | United States | Panama City Beach, FL – Northwest Florida Beaches Intl. |
| ECS | United States | Newcastle, WY – Mondell Field |
| EDA | United States | Edna Bay, AK – Edna Bay |
| EDE | United States | Edenton, NC – Northeastern Rgnl |
| EDF | United States | Anchorage, AK – Elmendorf AFBase |
| EDK | United States | El Dorado, KS – Captain Jack Thomas/El Dorado |
| EDW | United States | Edwards, CA – Edwards AFBase |
| EED | United States | Needles, CA – Needles |
| EEK | United States | Eek, AK – Eek |
| EEN | United States | Keene, NH – Dillant-Hopkins |
| EFD | United States | Houston, TX – Ellington Field |
| EFK | United States | Newport, VT – Newport State |
| EFW | United States | Jefferson, IA – Jefferson Munl |
| EGE | United States | Eagle/Vail, CO – Eagle County Regional |
| EGI | United States | Crestview, FL – Duke Field (Eglin Auxiliary Field 3) |
| EGP | United States | Eagle Pass, TX – Maverick County Memorial Intl. |
| EGV | United States | Eagle River, WI – Eagle River Union |
| EGX | United States | Egegik, AK – Egegik |
| EHM | United States | Cape Newenham, AK – Cape Newenham LRRS |
| EIL | United States | Fairbanks, AK – Eielson AFBase |
| EKA | United States | Eureka, CA – Murray Field |
| EKI | United States | Elkhart, IN – Elkhart Munl |
| EKN | United States | Elkins, WV – Jennings Randolph Field |
| EKO | United States | Elko, NV – Elko Regional |
| EKX | United States | Elizabethtown, KY – Addington Field |
| ELA | United States | Eagle Lake, TX – Eagle Lake |
| ELD | United States | El Dorado, AR – Goodwin Field |
| ELI | United States | Elim, AK – Elim |
| ELK | United States | Elk City, OK – Elk City Rgnl Business |
| ELM | United States | Elmira/Corning, NY – Elmira/Corning Regional |
| ELN | United States | Ellensburg, WA – Bowers Field |
| ELP | United States | El Paso, TX – El Paso Intl. |
| ELV | United States | Elfin Cove, AK – Elfin Cove Seaplane Base |
| ELW | United States | Ellamar, AK – Ellamar SPBase |
| ELY | United States | Ely, NV – Ely Airport-Yelland Field |
| ELZ | United States | Wellsville, NY – Wellsville Munl (Tarantine Field) |
| EMK | United States | Emmonak, AK – Emmonak |
| EMM | United States | Kemmerer, WY – Kemmerer Munl |
| EMP | United States | Emporia, KS – Emporia Municipal |
| EMT | United States | El Monte, CA – El Monte |
| ENA | United States | Kenai, AK – Kenai Municipal |
| END | United States | Enid, OK – Vance AFBase |
| ENL | United States | Centralia, IL – Centralia Munl |
| ENN | United States | Nenana, AK – Nenana Munl |
| ENV | United States | Wendover, UT – Wendover |
| ENW | United States | Kenosha, WI – Kenosha Regional |
| EOK | United States | Keokuk, IA – Keokuk Munl |
| EOS | United States | Neosho, MO – Neosho Hugh Robinson |
| EPG | United States | Weeping Water, NE – Browns |
| EPH | United States | Ephrata, WA – Ephrata Munl |
| ERI | United States | Erie, PA – Erie Intl. |
| ERR | United States | Errol, NH – Errol |
| ERV | United States | Kerrville, TX – Kerrville Munl (Louis Schreiner Field) |
| ESC | United States | Escanaba, MI – Delta County |
| ESD | United States | Eastsound, WA – Orcas Island |
| ESF | United States | Alexandria, LA – Esler Airfield (Esler Rgnl) |
| ESN | United States | Easton, MD – Easton |
| ESO | United States | Española, NM – Ohkay Owingeh |
| ESP | United States | East Stroudsburg, PA – Stroudsburg–Pocono |
| EST | United States | Estherville, IA – Estherville Munl |
| ESW | United States | Easton, WA – Easton State |
| ETB | United States | West Bend, WI – West Bend Municipal |
| ETN | United States | Eastland, TX – Eastland Munl |
| ETS | United States | Enterprise, AL – Enterprise Munl |
| EUE | United States | Eureka, NV – Eureka |
| EUF | United States | Eufaula, AL – Weedon Field |
| EUG | United States | Eugene, OR – Mahlon Sweet Field |
| EVA | United States | Evadale, TX – Ben Bruce Memorial Airpark |
| EVM | United States | Eveleth, MN – Eveleth-Virginia Munl |
| EVV | United States | Evansville, IN – Evansville Regional |
| EVW | United States | Evanston, WY – Evanston-Uinta County Burns Field |
| EWB | United States | New Bedford/Fall River, MA – New Bedford Regional |
| EWK | United States | Newton, KS – Newton City/Cnty |
| EWN | United States | New Bern, NC – Coastal Carolina Regional |
| EWR | United States | Newark, NJ – Newark Liberty Intl. |
| EXI | United States | Excursion Inlet, AK – Excursion Inlet SPBase |
| EYR | United States | Yerington, NV – Yerington Munl |
| EYW | United States | Key West, FL – Key West Intl. |
| FAF | United States | Fort Eustis, VA – Felker AAField |
| FAI | United States | Fairbanks, AK – Fairbanks Intl. |
| FAJ | United States | Fajardo, PR – Diego Jiménez Torres |
| FAK | United States | False, AK – False Isl SPBase |
| FAM | United States | Farmington, MO – Farmington Rgnl |
| FAR | United States | Fargo, ND – Hector Intl. |
| FAT | United States | Fresno, CA – Fresno Yosemite Intl. |
| FAY | United States | Fayetteville, NC – Fayetteville Municipal |
| FBG | United States | Fort Bragg, NC – Simmons AAField |
| FBK | United States | Fort Wainwright/Fairbanks, AK – Ladd AAField |
| FBL | United States | Faribault, MN – Faribault Municipal |
| FBR | United States | Fort Bridger, WY – Fort Bridger |
| FBS | United States | Friday Harbor, WA – Friday Harbor Seaplane Base |
| FBY | United States | Fairbury, NE – Fairbury Munl |
| FCA | United States | Kalispell, MT – Glacier Park Intl. |
| FCH | United States | Fresno, CA – Fresno Chandler Executive |
| FCM | United States | Eden Prairie, MN – Flying Cloud |
| FCS | United States | Colorado Springs, CO – Fort Carson |
| FCY | United States | Forrest City, AR – Forrest City Munl |
| FDK | United States | Frederick, MD – Frederick Municipal |
| FDR | United States | Frederick, OK – Frederick Rgnl |
| FDY | United States | Findlay, OH – Findlay |
| FEP | United States | Freeport, IL – Albertus |
| FET | United States | Fremont, NE – Fremont Munl |
| FFA | United States | Kill Devil Hills, NC – First Flight |
| FFL | United States | Fairfield, IA – Fairfield Munl |
| FFM | United States | Fergus Falls, MN – Fergus Falls Munl (Einar Mickelson Field) |
| FFO | United States | Dayton, OH – Wright-Patterson AFBase |
| FFT | United States | Frankfort, KY – Capital City |
| FHU | United States | Fort Huachuca/Sierra Vista, AZ – Sierra Vista Munl (Libby AAField) |
| FID | United States | Fishers, NY – Elizabeth Field |
| FIL | United States | Fillmore, UT – Fillmore Munl |
| FKL | United States | Franklin, PA – Venango Regional |
| FKN | United States | Franklin, VA – Franklin Munl–John Beverly Rose |
| FLD | United States | Fond du Lac, WI – Fond du Lac County |
| FLG | United States | Flagstaff, AZ – Flagstaff Pulliam |
| FLL | United States | Fort Lauderdale/Hollywood, FL – Fort Lauderdale/Hollywood Intl. |
| FLO | United States | Florence, SC – Florence Regional |
| FLP | United States | Flippin, AR – Marion Cnty Rgnl |
| FLT | United States | Flat, AK – Flat |
| FLV | United States | Fort Leavenworth, KS – Sherman AAField |
| FLX | United States | Fallon, NV – Fallon Munl |
| FME | United States | Fort Meade/Odenton, MD – Tipton |
| FMH | United States | Falmouth, MA – Otis Air Ntnl Guard Base |
| FMN | United States | Farmington, NM – Four Corners Regional |
| FMS | United States | Fort Madison, IA – Fort Madison Munl |
| FMU | United States | Florence, OR – Florence Munl |
| FMY | United States | Fort Myers, FL – Page Field |
| FNL | United States | Fort Collins/Loveland, CO – Fort Collins-Loveland Municipal |
| FNR | United States | Funter Bay, AK – Funter Bay SPBase |
| FNT | United States | Flint, MI – Bishop Intl. |
| FOB | United States | Fort Bragg, CA – Fort Bragg |
| FOD | United States | Fort Dodge, IA – Fort Dodge Municipal |
| FOE | United States | Topeka, KS – Forbes Field |
| FOK | United States | Westhampton Beach, NY – Francis S. Gabreski |
| FPR | United States | Fort Pierce, FL – Saint Lucie County Intl. |
| FPY | United States | Perry, FL – Perry-Foley |
| FRD | United States | Friday Harbor, WA – Friday Harbor |
| FRG | United States | Farmingdale, NY – Republic |
| FRH | United States | French Lick, IN – French Lick Munl |
| FRI | United States | Fort Riley/Junction City, KS – Marshall AAField |
| FRM | United States | Fairmont, MN – Fairmont Munl |
| FRN | United States | Fort Richardson, AK – Bryant Army |
| FRR | United States | Front Royal, VA – Front Royal–Warren Cnty |
| FRY | United States | Fryeburg, ME – Eastern Slopes Rgnl |
| FSD | United States | Sioux Falls, SD – Joe Foss Field |
| FSI | United States | Fort Sill/Lawton, OK – Henry Post AAField |
| FSK | United States | Fort Scott, KS – Fort Scott Munl |
| FSM | United States | Fort Smith, AR – Fort Smith Municipal |
| FST | United States | Fort Stockton, TX – Fort Stockton–Pecos Cnty |
| FSU | United States | Fort Sumner, NM – Fort Sumner Munl |
| FTI | United States | Fitiuta, – Fitiuta |
| FTK | United States | Fort Knox, KY – Godman AAField |
| FTW | United States | Fort Worth, TX – Fort Worth Meacham Intl. |
| FTY | United States | Atlanta, GA – Fulton County Airport-Brown Field |
| FUL | United States | Fullerton, CA – Fullerton Municipal |
| FWA | United States | Fort Wayne, IN – Fort Wayne Intl. |
| FWH | United States | Fort Worth, TX – NAS Fort Worth JRB/Carswell Field |
| FWL | United States | Farewell, AK – Farewell |
| FXE | United States | Fort Lauderdale, FL – Fort Lauderdale Executive |
| FXY | United States | Forest City, IA – Forest City Munl |
| FYM | United States | Fayetteville, TN – Fayetteville Munl |
| FYU | United States | Fort Yukon, AK – Fort Yukon |
| FYV | United States | Fayetteville, AR – Drake Field |
| GAB | United States | Gabbs, NV – Gabbs |
| GAD | United States | Gadsden, AL – Northeast Alabama Regional |
| GAG | United States | Gage, OK – Gage |
| GAI | United States | Gaithersburg, MD – Montgomery County Airpark |
| GAL | United States | Galena, AK – Galena |
| GAM | United States | Gambell, AK – Gambell |
| GBD | United States | Great Bend, KS – Great Bend Municipal |
| GBG | United States | Galesburg, IL – Galesburg Municipal |
| GBH | United States | Galbraith Lake, AK – Galbraith Lake |
| GBR | United States | Great Barrington, MA – Walter J. Koladza |
| GCC | United States | Gillette, WY – Gillette-Campbell County |
| GCD | United States | Electric City, WA – Grand Coulee Dam |
| GCK | United States | Garden City, KS – Garden City Regional |
| GCN | United States | Tusayan, AZ – Grand Canyon National Park |
| GCW | United States | Peach Springs, AZ – Grand Canyon West |
| GCY | United States | Greeneville, TN – Greeneville–Greene Cnty Munl |
| GDC | United States | Greenville, SC – Donaldson Center |
| GDH | United States | Golden Horn Lodge, AK – Golden Horn Lodge SPBase |
| GDM | United States | Gardner, MA – Gardner Munl |
| GDV | United States | Glendive, MT – Dawson Community |
| GDW | United States | Gladwin, MI – Gladwin Zettel Memorial |
| GED | United States | Georgetown, DE – Sussex County |
| GEG | United States | Spokane, WA – Spokane Intl. |
| GEY | United States | Greybull, WY – South Big Horn Cnty |
| GFD | United States | Greenfield, IN – Pope Field |
| GFK | United States | Grand Forks, ND – Grand Forks Intl. |
| GFL | United States | Glens Falls, NY – Floyd Bennett Memorial |
| GGE | United States | Georgetown, SC – Georgetown County |
| GGG | United States | Longview, TX – Gregg County |
| GGW | United States | Glasgow, MT – Glasgow Intl. |
| GHM | United States | Centerville, TN – Centerville Munl |
| GIF | United States | Winter Haven, FL – Winter Haven’s Gilbert |
| GJT | United States | Grand Junction, CO – Grand Junction Regional |
| GKN | United States | Gulkana, AK – Gulkana |
| GKT | United States | Sevierville, TN – Gatlinburg-Pigeon Forge |
| GLB | United States | Globe, AZ – San Carlos Apache |
| GLD | United States | Goodland, KS – Goodland Munl (Renner Field) |
| GLE | United States | Gainesville, TX – Gainesville Munl |
| GLH | United States | Greenville, MS – Greenville Intl. |
| GLR | United States | Gaylord, MI – Gaylord Regional |
| GLS | United States | Galveston, TX – Scholes Field |
| GLV | United States | Golovin, AK – Golovin |
| GLW | United States | Glasgow, KY – Glasgow Munl |
| GMT | United States | Granite Mountain, AK – Granite Mountain Air Station |
| GMU | United States | Greenville, SC – Greenville Downtown |
| GMV | United States | Monument Valley, UT – Gouldings |
| GNF | United States | Quincy, CA – Gansner Field |
| GNG | United States | Gooding, ID – Gooding Munl |
| GNT | United States | Grants, NM – Grants-Milan Munl |
| GNU | United States | Goodnews Bay, AK – Goodnews |
| GNV | United States | Gainesville, FL – Gainesville Regional |
| GOK | United States | Guthrie, OK – Guthrie–Edmond Rgnl |
| GOL | United States | Gold Beach, OR – Gold Beach Munl |
| GON | United States | Groton/New London, CT – Groton-New London |
| GPT | United States | Gulfport/Biloxi, MS – Gulfport-Biloxi Regional |
| GPZ | United States | Grand Rapids, MN – Grand Rapids/Itasca County Airport-Gordon Newstrom Field |
| GQQ | United States | Galion, OH – Galion Munl |
| GRB | United States | Green Bay, WI – Austin Straubel Intl. |
| GRD | United States | Greenwood, SC – Greenwood County |
| GRE | United States | Greenville, IL – Greenville |
| GRF | United States | Fort Lewis/Tacoma, WA – Gray AAField |
| GRI | United States | Grand, NE – Central Nebraska Regional |
| GRK | United States | Fort Hood/Killeen, TX – Killeen-Fort Hood Regional |
| GRM | United States | Grand Marais, MN – Grand Marais/Cook Cnty |
| GRN | United States | Gordon, NE – Gordon Munl |
| GRR | United States | Grand Rapids, MI – Gerald R. Ford Intl. |
| GSB | United States | Goldsboro, NC – Seymour Johnson AFBase |
| GSH | United States | Goshen, IN – Goshen Municipal |
| GSO | United States | Greensboro, NC – Piedmont Triad Intl. |
| GSP | United States | Greenville/Spartanburg, SC – Greenville-Spartanburg Intl. |
| GST | United States | Gustavus, AK – Gustavus |
| GTF | United States | Great Falls, MT – Great Falls Intl. |
| GTG | United States | Grantsburg, WI – Grantsburg Munl |
| GTP | United States | Grants Pass, OR – Grants Pass |
| GTR | United States | Columbus/West Point/Starkville, MS – Golden Triangle Regional |
| GTY | United States | Gettysburg, PA – Gettysburg Rgnl |
| GUC | United States | Gunnison, CO – Gunnison County |
| GUF | United States | Gulf Shores, AL – Jack Edwards |
| GUP | United States | Gallup, NM – Gallup Municipal |
| GUS | United States | Peru, IN – Grissom AFBase |
| GUY | United States | Guymon, OK – Guymon Munl |
| GVE | United States | Gordonsville, VA – Gordonsville Munl |
| GVL | United States | Gainesville, GA – Lee Gilmer Memorial |
| GVT | United States | Greenville, TX – Majors |
| GWO | United States | Greenwood, MS – Greenwood-Leflore |
| GWS | United States | Glenwood Springs, CO – Glenwood Springs Municipal |
| GWV | United States | Glen Dale, WV – Glendale Fokker Field |
| GXY | United States | Greeley, CO – Greeley-Weld County |
| GYR | United States | Goodyear, AZ – Phoenix Goodyear |
| GYY | United States | Gary, IN – Gary/Chicago Intl. |
| HAB | United States | Hamilton, AL – Marion Cnty – Rankin Fite |
| HAE | United States | Havasupai, AZ – Havasupai |
| HAF | United States | Half Moon, CA – Half Moon Bay |
| HAI | United States | Three Rivers, MI – Three Rivers Munl (Dr. Haines Flying Field) |
| HAO | United States | Hamilton, OH – Butler Cnty Rgnl |
| HAR | United States | Harrisburg, PA – Capital City |
| HBB | United States | Hobbs, NM – Hobbs Industrial Airpark |
| HBG | United States | Hattiesburg, MS – Hattiesburg Municipal |
| HBH | United States | Entrance/Hobart Bay, AK – Entrance/Hobart SPBase |
| HBK | United States | Holbrook, AZ – Holbrook Munl |
| HBR | United States | Hobart, OK – Hobart Rgnl |
| HCA | United States | Big Spring, TX – Big Spring McMahon–Wrinkle |
| HCC | United States | Hudson, NY – Columbia Cnty |
| HCR | United States | Holy Cross, AK – Holy Cross |
| HCW | United States | Cheraw, SC – Cheraw Munl/Lynch Bellinger Field |
| HDE | United States | Holdrege, NE – Brewster Field |
| HDH | United States | Mokulēia, HI – Dillingham Airfield |
| HDN | United States | Hayden, CO – Yampa Valley |
| HED | United States | Herendeen Bay, AK – Herendeen Bay |
| HEE | United States | Helena, AR – Thompson–Robbins |
| HES | United States | Hermiston, OR – Hermiston Municipal |
| HEZ | United States | Natchez, MS – Natchez–Adams Cnty (Hardy–Anders Field) |
| HFD | United States | Hartford, CT – Hartford-Brainard |
| HFF | United States | Hoffman, NC – Mackall AAField |
| HGR | United States | Hagerstown, MD – Hagerstown Regional |
| HGZ | United States | Hogatza, AK – Hog River |
| HHH | United States | Hilton Head Isl, SC – Hilton Head |
| HHI | United States | Wahiawa, HI – Wheeler AAField |
| HHR | United States | Hawthorne, CA – Jack Northrop Field/Hawthorne Municipal |
| HIB | United States | Hibbing, MN – Range Regional |
| HIE | United States | Whitefield, NH – Mount Washington Rgnl |
| HIF | United States | Ogden, UT – Hill AFBase |
| HII | United States | Lake Havasu City, AZ – Lake Havasu City |
| HIO | United States | Hillsboro/Portland, OR – Portland-Hillsboro |
| HKA | United States | Blytheville, AR – Blytheville Munl |
| HKB | United States | Healy Lake, AK – Healy Lake |
| HKS | United States | Jackson, MS – Hawkins Field |
| HKY | United States | Hickory, NC – Hickory Regional |
| HLB | United States | Batesville, IN – Hillenbrand Industries |
| HLC | United States | Hill City, KS – Hill City Munl |
| HLG | United States | Wheeling, WV – Wheeling Ohio Cnty |
| HLI | United States | Hollister, CA – Hollister Munl |
| HLM | United States | Holland, MI – Park Township |
| HLN | United States | Helena, MT – Helena Regional |
| HLR | United States | Fort Hood/Killeen, TX – Hood AAField |
| HMN | United States | Alamogordo, NM – Holloman AFBase |
| HMT | United States | Hemet, CA – Hemet-Ryan |
| HNB | United States | Huntingburg, IN – Huntingburg |
| HNC | United States | Hatteras, NC – Billy Mitchell |
| HNH | United States | Hoonah, AK – Hoonah |
| HNL | United States | Honolulu, HI – Daniel K. Inouye Intl. |
| HNM | United States | Hana, HI – Hana |
| HNS | United States | Haines, AK – Haines |
| HOB | United States | Hobbs, NM – Hobbs |
| HOM | United States | Homer, AK – Homer |
| HON | United States | Huron, SD – Huron Regional |
| HOP | United States | Fort Campbell/Hopkinsville, KY – Campbell AAField |
| HOT | United States | Hot Springs, AR – Memorial Field |
| HOU | United States | Houston, TX – William P Hobby airport |
| HPB | United States | Hooper Bay, AK – Hooper Bay |
| HPN | United States | White Plains, NY – Westchester County |
| HPT | United States | Hampton, IA – Hampton Munl |
| HPV | United States | Hanalei/Kauai, HI – Princeville |
| HPY | United States | Baytown, TX – Baytown |
| HQM | United States | Hoquiam, WA – Bowerman |
| HRL | United States | Harlingen, TX – Rio Grande Valley Intl. |
| HRO | United States | Harrison, AR – Boone County |
| HSB | United States | Harrisburg, IL – Harrisburg-Raleigh |
| HSH | United States | Las Vegas, NV – Henderson Executive |
| HSI | United States | Hastings, NE – Hastings Municipal |
| HSL | United States | Huslia, AK – Huslia |
| HSP | United States | Hot Springs, VA – Ingalls Field |
| HST | United States | Homestead, FL – Homestead Air Force Base |
| HSV | United States | Huntsville, AL – Huntsville Intl. Airport-Carl T Jones Field |
| HTH | United States | Hawthorne, NV – Hawthorne Industrial |
| HTL | United States | Houghton Lake, MI – Roscommon Cnty (Blodgett Memorial) |
| HTO | United States | East Hampton, NY – East Hampton |
| HTS | United States | Huntington, WV – Tri-State |
| HTV | United States | Huntsville, TX – Huntsville Munl |
| HTW | United States | Chesapeake/Huntington, OH – Lawrence Cnty Airpark |
| HUA | United States | Redstone Arsenal/Huntsville, AL – Redstone AAField |
| HUC | United States | Humacao, PR – Humacao |
| HUD | United States | Humboldt, IA – Humboldt Munl |
| HUF | United States | Terre Haute, IN – Terre Haute, Terre Haute Intl. Airport – Hulman Field |
| HUJ | United States | Hugo, OK – Stan Stamper Munl |
| HUL | United States | Houlton, ME – Houlton Intl |
| HUM | United States | Houma, LA – Houma-Terrebonne |
| HUS | United States | Hughes, AK – Hughes |
| HUT | United States | Hutchinson, KS – Hutchinson Municipal |
| HVE | United States | Hanksville, UT – Hanksville |
| HVN | United States | New Haven, CT – Tweed-New Haven |
| HVR | United States | Havre, MT – Havre City–Cnty |
| HVS | United States | Hartsville, SC – Hartsville Rgnl |
| HWD | United States | Hayward, CA – Hayward Air Terminal |
| HWI | United States | Hawk Inlet, AK – Hawk Inlet SPBase |
| HWO | United States | Hollywood, FL – North Perry |
| HYA | United States | Hyannis, MA – Barnstable Municipal Airport-Boardman/Polando Field |
| HYG | United States | Hydaburg, AK – Hydaburg Seaplane Base |
| HYL | United States | Hollis, AK – Hollis Clark Bay Seaplane Base |
| HYR | United States | Hayward, WI – Sawyer Cnty |
| HYS | United States | Hays, KS – Hays Municipal |
| HZL | United States | Hazleton, PA – Hazleton Regional |
| IAB | United States | Wichita, KS – McConnell AFBase |
| IAD | United States | Washington, DC – Washington Dulles Intl. |
| IAG | United States | Niagara Falls, NY – Niagara Falls Intl. |
| IAH | United States | Houston, TX – George Bush Intercontinental |
| IAN | United States | Kiana, AK – Bob Baker Memorial |
| ICL | United States | Clarinda, IA – Schenck Field |
| ICS | United States | Cascade, ID – Cascade |
| ICT | United States | Wichita, KS – Wichita Mid-Continent |
| ICY | United States | Icy Bay, AK – Icy Bay |
| IDA | United States | Idaho Falls, ID – Fanning Field |
| IDG | United States | Ida Grove, IA – Ida Grove Munl |
| IDH | United States | Grangeville, ID – Idaho Cnty |
| IDI | United States | Indiana, PA – Indiana County/Jimmy Stewart Field |
| IDP | United States | Independence, KS – Independence Munl |
| IFA | United States | Iowa Falls, IA – Iowa Falls Munl |
| IFP | United States | Bullhead City, AZ – Laughlin/Bullhead Intl. |
| IGG | United States | Igiugig, AK – Igiugig |
| IGM | United States | Kingman, AZ – Kingman |
| IJX | United States | Jacksonville, IL – Jacksonville Munl |
| IKB | United States | North Wilkesboro, NC – Wilkes Cnty |
| IKK | United States | Kankakee, IL – Greater Kankakee |
| IKO | United States | Nikolski, AK – Nikolski Air Station |
| ILE | United States | Killeen, TX – Skylark Field |
| ILG | United States | Wilmington, DE – New Castle |
| ILI | United States | Iliamna, AK – Iliamna |
| ILL | United States | Willmar, MN – Willmar Municipal Airport-John L Rice Field |
| ILM | United States | Wilmington, NC – Wilmington Intl. |
| ILN | United States | Wilmington, OH – Wilmington Air Park |
| IML | United States | Imperial, NE – Imperial Munl |
| IMM | United States | Immokalee, FL – Immokalee Rgnl |
| IMT | United States | Iron Mountain/Kingsford, MI – Ford |
| IND | United States | Indianapolis, IN – Indianapolis Intl. |
| INK | United States | Wink, TX – Winkler Cnty |
| INL | United States | Intl Falls, MN – Falls Intl. Airport-Einarson Field |
| INS | United States | Indian Springs, NV – Creech AFBase |
| INT | United States | Winston-Salem, NC – Smith Reynolds |
| INW | United States | Winslow, AZ – Winslow–Lindbergh Rgnl |
| IOW | United States | Iowa City, IA – Iowa City Municipal |
| IPL | United States | Imperial/El Centro, CA – Imperial County |
| IPT | United States | Williamsport, PA – Williamsport-Lycoming County |
| IRB | United States | Iraan, TX – Iraan Munl |
| IRC | United States | Circle, AK – Circle City |
| IRK | United States | Kirksville, MO – Kirksville Regional |
| IRS | United States | Sturgis, MI – Kirsch Munl |
| ISM | United States | Orlando, FL – Kissimmee Gateway |
| ISN | United States | Williston, ND – Sloulin Field Intl. |
| ISO | United States | Kinston, NC – Kinston Regional Jetport |
| ISP | United States | Islip, NY – Long Island Mac Arthur |
| ISQ | United States | Manistique, MI – Schoolcraft Cnty |
| ISS | United States | Wiscasset, ME – Wiscasset |
| ISW | United States | Wisconsin Rapids, WI – Alexander Field South Wood County |
| ITH | United States | Ithaca, NY – Ithaca Tompkins Regional |
| ITO | United States | Hilo, HI – Hilo Intl. |
| IWD | United States | Ironwood, MI – Gogebic-Iron County |
| IWS | United States | Houston, TX – West Houston |
| IYK | United States | Inyokern, CA – Inyokern |
| JAC | United States | Jackson, WY – Jackson Hole |
| JAN | United States | Jackson, MS – Jackson-Evers Intl. |
| JAS | United States | Jasper, TX – Jasper Cnty (Bell Field) |
| JAX | United States | Jacksonville, FL – Jacksonville Intl. |
| JBR | United States | Jonesboro, AR – Jonesboro Municipal |
| JBT | United States | Bethel, AK – Bethel SPBase |
| JCI | United States | Olathe, KS – New Century AirCenter |
| JCT | United States | Junction, TX – Kimble Cnty |
| JCY | United States | Johnson City, TX – LBJ Ranch |
| JDA | United States | John Day, OR – Grant Cnty Rgnl (Ogilvie Field) |
| JDN | United States | Jordan, MT – Jordan |
| JEF | United States | Jefferson City, MO – Jefferson City Memorial |
| JFK | United States | New York City, NY – John F. Kennedy Intl. airport |
| JFN | United States | Jefferson, OH – Northeast Ohio Rgnl |
| JHM | United States | Kapalua, HI – Kapalua |
| JHW | United States | Jamestown, NY – Chautauqua County-Jamestown |
| JKV | United States | Jacksonville, TX – Cherokee Cnty |
| JLA | United States | Cooper Lodge, AK – Quartz Creek |
| JLN | United States | Joplin, MO – Joplin Regional |
| JMS | United States | Jamestown, ND – Jamestown Municipal |
| JNU | United States | Juneau, AK – Juneau Intl. |
| JOT | United States | Joliet, IL – Joliet Regional |
| JRF | United States | Kapolei, HI – Kalaeloa (John Rodgers Field) |
| JST | United States | Johnstown, PA – Johnstown-Cambria County |
| JVI | United States | Manville, NJ – Central Jersey Rgnl |
| JVL | United States | Janesville, WI – Southern Wisconsin Regional |
| JXN | United States | Jackson, MI – Jackson County |
| KAE | United States | Kake, AK – Kake Seaplane Base |
| KAL | United States | Kaltag, AK – Kaltag |
| KBC | United States | Birch Creek, AK – Birch Creek |
| KBE | United States | Bell, AK – Bell Isl Hot Springs SPBase |
| KBW | United States | Chignik, AK – Chignik Bay SPBase |
| KCC | United States | Coffman Cove, AK – Coffman Cove Seaplane Base |
| KCG | United States | Chignik, AK – Chignik Fisheries (closed) |
| KCL | United States | Chignik Lagoon, AK – Chignik Lagoon |
| KCN | United States | Chernofski Harbor, AK – Chernofski Harbor SPBase |
| KCQ | United States | Chignik Lake, AK – Chignik Lake |
| KCR | United States | Colorado Creek, AK – Colorado Creek |
| KDK | United States | Kodiak, AK – Kodiak Munl |
| KEB | United States | Nanwalek, AK – Nanwalek |
| KEH | United States | Kenmore, WA – Kenmore Air Harbor |
| KEK | United States | Ekwok, AK – Ekwok |
| KFP | United States | False Pass, AK – False Pass |
| KGK | United States | Koliganek, AK – Koliganek |
| KGX | United States | Grayling, AK – Grayling |
| KGZ | United States | Glacier Creek, AK – Glacier Creek |
| KIB | United States | Ivanof Bay, AK – Ivanof Bay SPBase |
| KIC | United States | King City, CA – Mesa Del Rey |
| KIP | United States | Wichita Falls, TX – Kickapoo Downtown |
| KKA | United States | Koyuk, AK – Koyuk |
| KKB | United States | Kitoi Bay, AK – Kitoi Bay Seaplane Base |
| KKH | United States | Kongiganak, AK – Kongiganak |
| KKI | United States | Akiachak, AK – Akiachak |
| KKK | United States | Kalakaket Creek, AK – Kalakaket Creek Air Station |
| KKL | United States | Karluk Lake, AK – Karluk Lake SPBase |
| KKT | United States | Kentland, IN – Kentland Munl |
| KKU | United States | Ekuk, AK – Ekuk |
| KLG | United States | Kalskag, AK – Kalskag |
| KLL | United States | Levelock, AK – Levelock |
| KLN | United States | Larsen Bay, AK – Larsen Bay |
| KLS | United States | Kelso, WA – Southwest Washington Rgnl |
| KLW | United States | Klawock, AK – Klawock |
| KMO | United States | Manokotak, AK – Manokotak |
| KMY | United States | Moser Bay, AK – Moser Bay Seaplane Base |
| KNB | United States | Kanab, UT – Kanab Munl |
| KNK | United States | Kokhanok, AK – Kokhanok |
| KNT | United States | Kennett, MO – Kennett Memorial |
| KNW | United States | New Stuyahok, AK – New Stuyahok |
| KOA | United States | Kailua/Kona, HI – Kona Intl. |
| KOT | United States | Kotlik, AK – Kotlik |
| KOY | United States | Olga Bay, AK – Olga Bay Seaplane Base |
| KOZ | United States | Ouzinkie, AK – Ouzinkie |
| KPB | United States | Point Baker, AK – Point Baker Seaplane Base |
| KPC | United States | Port Clarence, AK – Port Clarence Coast Guard Station |
| KPN | United States | Kipnuk, AK – Kipnuk |
| KPR | United States | Port Williams, AK – Port Williams Seaplane Base |
| KPT | United States | Jackpot, NV – Jackpot (Hayden Field) |
| KPV | United States | Perryville, AK – Perryville |
| KPY | United States | Port Bailey, AK – Port Bailey Seaplane Base |
| KQA | United States | Akutan, AK – Akutan Seaplane Base |
| KSM | United States | St. Mary’s, AK – St. Mary’s |
| KTB | United States | Thorne Bay, AK – Thorne Bay Seaplane Base |
| KTH | United States | Tikchik, AK – Tikchik Lodge SPBase |
| KTN | United States | Ketchikan, AK – Ketchikan Intl. |
| KTS | United States | Brevig Mission, AK – Brevig Mission |
| KUK | United States | Kasigluk, AK – Kasigluk |
| KVC | United States | King Cove, AK – King Cove |
| KVL | United States | Kivalina, AK – Kivalina |
| KWF | United States | Waterfall, AK – Waterfall Seaplane Base |
| KWK | United States | Kwigillingok, AK – Kwigillingok |
| KWN | United States | Quinhagak, AK – Quinhagak |
| KWP | United States | West Point, AK – West Point Village Seaplane Base |
| KWT | United States | Kwethluk, AK – Kwethluk |
| KXA | United States | Kasaan, AK – Kasaan Seaplane Base |
| KYK | United States | Karluk, AK – Karluk |
| KYO | United States | Tampa, FL – Tampa North Aero Park |
| KYU | United States | Koyukuk, AK – Koyukuk |
| KZB | United States | Zachar Bay, AK – Zachar Bay Seaplane Base |
| LAA | United States | Lamar, CO – Lamar Munl |
| LAF | United States | Lafayette, IN – Purdue University |
| LAL | United States | Lakeland, FL – Lakeland Linder Regional |
| LAM | United States | Los Alamos, NM – Los Alamos County |
| LAN | United States | Lansing, MI – Lansing, Capital City |
| LAR | United States | Laramie, WY – Laramie Regional |
| LAS | United States | Las Vegas, NV – McCarran Intl. |
| LAW | United States | Lawton, OK – Lawton-Fort Sill Regional |
| LAX | United States | Los Angeles, CA – Los Angeles Intl. |
| LBB | United States | Lubbock, TX – Lubbock Intl. |
| LBE | United States | Latrobe, PA – Arnold Palmer Regional |
| LBF | United States | North Platte, NE – North Platte Regional Airport Lee Bird Field |
| LBL | United States | Liberal, KS – Liberal Mid-America Regional |
| LBT | United States | Lumberton, NC – Lumberton Regional |
| LCH | United States | Lake Charles, LA – Lake Charles Regional |
| LCI | United States | Laconia, NH – Laconia Municipal |
| LCK | United States | Columbus, OH – Rickenbacker Intl. |
| LCQ | United States | Lake City, FL – Lake City Gateway |
| LDJ | United States | Linden, NJ – Linden |
| LDM | United States | Ludington, MI – Mason Cnty |
| LEB | United States | Lebanon/Hanover, NH – Lebanon Municipal |
| LEE | United States | Leesburg, FL – Leesburg Intl. |
| LEM | United States | Lemmon, SD – Lemmon Munl |
| LEW | United States | Lewiston, ME – Auburn/Lewiston Munl |
| LEX | United States | Lexington, KY – Blue Grass |
| LFI | United States | Hampton, VA – Langley AFBase |
| LFK | United States | Lufkin, TX – Angelina Cnty |
| LFN | United States | Louisburg, NC – Triangle North Executive (Franklin Cnty) |
| LFT | United States | Lafayette, LA – Lafayette Regional |
| LGA | United States | New York City, NY – La Guardia |
| LGB | United States | Long Beach, CA – Long Beach |
| LGC | United States | LaGrange, GA – LaGrange Callaway |
| LGD | United States | La Grande, OR – La Grande/Union Cnty |
| LGF | United States | Yuma Proving Ground, AZ – Laguna AAField |
| LGU | United States | Logan, UT – Logan-Cache |
| LHV | United States | Lock Haven, PA – William T. Piper Memorial |
| LIC | United States | Limon, CO – Limon Munl |
| LIH | United States | Lihue, HI – Lihue |
| LIT | United States | Little Rock, AR – Adams Field |
| LIV | United States | Livengood, AK – Livengood Camp |
| LIY | United States | Fort Stewart/Hinesville, GA – MidCoast Rgnl at Wright AAField |
| LIZ | United States | Limestone, ME – Loring Intl |
| LJN | United States | Lake Jackson, TX – Texas Gulf Coast Regional |
| LKE | United States | Seattle, WA – Lake Union Seaplane Base |
| LKK | United States | Kulik Lake, AK – Kulik Lake |
| LKP | United States | Lake Placid, NY – Lake Placid |
| LKV | United States | Lakeview, OR – Lake Cnty |
| LLX | United States | Lyndonville, VT – Caledonia Cnty |
| LLY | United States | Mt Holly, NJ – South Jersey Rgnl |
| LMA | United States | Lake Minchumina, AK – Minchumina |
| LMS | United States | Louisville, MS – Louisville Winston Cnty |
| LMT | United States | Klamath Falls, OR – Klamath Falls |
| LNA | United States | West Palm Beach, FL – Palm Beach Cnty Park |
| LND | United States | Lander, WY – Hunt Field |
| LNI | United States | Lonely, AK – Point Lonely Short Range Radar Site |
| LNK | United States | Lincoln, NE – Lincoln Municipal |
| LNN | United States | Willoughby, OH – Lost Nation |
| LNP | United States | Wise, VA – Lonesome Pine |
| LNR | United States | Lone Rock, WI – Tri-Cnty Rgnl |
| LNS | United States | Lancaster, PA – Lancaster |
| LNY | United States | Lanai City, HI – Lanai |
| LOL | United States | Lovelock, NV – Derby Field |
| LOT | United States | Lockport/Romeoville, IL – Lewis University |
| LOU | United States | Louisville, KY – Bowman Field |
| LOW | United States | Louisa, VA – Louisa Cnty (Freeman Field) |
| LOZ | United States | London, KY – London-Corbin |
| LPC | United States | Lompoc, CA – Lompoc |
| LPO | United States | La Porte, IN – La Porte Munl |
| LPS | United States | Lopez Isl, WA – Fishermans Bay Seaplane Base |
| LQK | United States | Pickens, SC – Pickens Cnty |
| LRD | United States | Laredo, TX – Laredo Intl. |
| LRF | United States | Jacksonville, AR – Little Rock AFBase |
| LRJ | United States | Le Mars, IA – Le Mars Munl |
| LRU | United States | Las Cruces, NM – Las Cruces Intl. |
| LSB | United States | Lordsburg, NM – Lordsburg Munl |
| LSE | United States | La Crosse, WI – La Crosse Municipal |
| LSF | United States | Fort Benning/Columbus, GA – Lawson AAField |
| LSK | United States | Lusk, WY – Lusk Munl |
| LSN | United States | Los Banos, CA – Los Banos Munl |
| LSV | United States | Las Vegas, NV – Nellis AFBase |
| LTS | United States | Altus, OK – Altus Air Force Base |
| LTW | United States | Leonardtown, MD – St. Mary’s Cnty Rgnl (Captain Walter Francis Duke Rgnl) |
| LUF | United States | Glendale, AZ – Luke AFBase |
| LUK | United States | Cincinnati, OH – Cincinnati Municipal Lunken |
| LUL | United States | Laurel, MS – Hesler-Noble Field |
| LUP | United States | Kalaupapa, HI – Kalaupapa |
| LUR | United States | Cape Lisburne, AK – Cape Lisburne LRRS |
| LVD | United States | Lime Village, AK – Lime Village |
| LVK | United States | Livermore, CA – Livermore Municipal |
| LVL | United States | Lawrenceville, VA – Lawrenceville/Brunswick Munl |
| LVM | United States | Livingston, MT – Mission Field |
| LVS | United States | Las Vegas, NM – Las Vegas Municipal |
| LWB | United States | Lewisburg, WV – Greenbrier Valley |
| LWC | United States | Lawrence, KS – Lawrence Municipal |
| LWL | United States | Wells, NV – Wells Munl (Harriet Field) |
| LWM | United States | Lawrence, MA – Lawrence Municipal |
| LWS | United States | Lewiston, ID – Lewiston-Nez Perce County |
| LWT | United States | Lewistown, MT – Lewistown Municipal |
| LWV | United States | Lawrenceville, IL – Lawrenceville–Vincennes Intl |
| LXN | United States | Lexington, NE – Jim Kelly Field |
| LXV | United States | Leadville, CO – Lake Cnty |
| LYH | United States | Lynchburg, VA – Lynchburg Regional |
| LYO | United States | Lyons, KS – Lyons–Rice Cnty Munl |
| LYU | United States | Ely, MN – Ely Munl |
| LZU | United States | LaGrange, GA – Lawrenceville, Gwinnett County-Briscoe Field |
| MAC | United States | Macon, GA – Macon Downtown |
| MAE | United States | Madera, CA – Madera Municipal |
| MAF | United States | Midland, TX – Midland Intl. |
| MAW | United States | Malden, MO – Malden Rgnl |
| MAZ | United States | Mayagüez, PR – Eugenio Maria de Hostos |
| MBG | United States | Mobridge, SD – Mobridge Munl |
| MBL | United States | Manistee, MI – Manistee County-Blacker |
| MBS | United States | Saginaw/Midland/Bay City, MI – MBS Intl. |
| MBY | United States | Moberly, MO – Omar N. Bradley |
| MCB | United States | Mccomb, MS – Mc Comb/Pike County Airport/John E Lewis Field |
| MCC | United States | Sacramento, CA – McClellan Airfield |
| MCD | United States | Mackinac, MI – Mackinac Isl |
| MCE | United States | Merced, CA – Merced Municipal |
| MCF | United States | Tampa, FL – MacDill AFBase |
| MCG | United States | McGrath, AK – McGrath |
| MCI | United States | Kansas City, MO – Kansas City Intl. |
| MCK | United States | McCook, NE – McCook Ben Nelson Regional |
| MCL | United States | McKinley Park, AK – McKinley Ntnl Park |
| MCN | United States | Macon, GA – Middle Georgia Regional |
| MCO | United States | Orlando, FL – Orlando Intl. |
| MCW | United States | Mason City, IA – Mason City Municipal |
| MDD | United States | Midland, TX – Midland Airpark |
| MDF | United States | Medford, WI – Taylor Cnty |
| MDH | United States | Carbondale/Murphysboro, IL – Southern Illinois |
| MDJ | United States | Madras, OR – Madras Munl |
| MDN | United States | Madison, IN – Madison Munl |
| MDO | United States | Middleton, AK – Middleton Isl |
| MDT | United States | Harrisburg, PA – Harrisburg Intl. |
| MDW | United States | Chicago, IL – Chicago Midway Intl. |
| MDY | United States | Sand, UM – Henderson Field |
| MEI | United States | Meridian, MS – Key Field |
| MEJ | United States | Meadville, PA – Port Meadville |
| MEM | United States | Memphis, TN – Memphis Intl. |
| MEO | United States | Manteo, NC – Dare Cnty Rgnl |
| MER | United States | Merced, CA – Castle |
| MEV | United States | Minden, NV – Minden–Tahoe |
| MFD | United States | Mansfield, OH – Mansfield Lahm Regional |
| MFE | United States | McAllen, TX – McAllen Miller Intl. |
| MFH | United States | Mesquite, NV – Mesquite |
| MFI | United States | Marshfield, WI – Marshfield Municipal |
| MFR | United States | Medford, OR – Rogue Valley Intl. – Medford |
| MFV | United States | Melfa, VA – Accomack Cnty |
| MGC | United States | Michigan City, IN – Michigan City Municipal Airport-Phillips Field |
| MGE | United States | Marietta, GA – Dobbins Air Reserve Base |
| MGI | United States | Matagorda, TX – Aransas Ntnl Wildlife Refuge |
| MGJ | United States | Montgomery, NY – Orange Cnty |
| MGM | United States | Montgomery, AL – Dannelly Field |
| MGR | United States | Moultrie, GA – Moultrie Municipal |
| MGW | United States | Morgantown, WV – Morgantown Municipal |
| MGY | United States | Dayton, OH – Dayton–Wright Brothers |
| MHE | United States | Mitchell, SD – Mitchell Munl |
| MHK | United States | Manhattan, KS – Manhattan Regional |
| MHL | United States | Marshall, MO – Marshall Memorial Munl |
| MHN | United States | Mullen, NE – Hooker Cnty |
| MHR | United States | Sacramento, CA – Sacramento Mather |
| MHS | United States | Mt Shasta, CA – Dunsmuir Munl-Mott |
| MHT | United States | Manchester, NH – Manchester |
| MHV | United States | Mojave, CA – Mojave |
| MIA | United States | Miami, FL – Miami Intl. |
| MIB | United States | Minot, ND – Minot AFBase |
| MIC | United States | Minneapolis/St. Paul, MN – Crystal |
| MIE | United States | Muncie, IN – Delaware County Regional |
| MIF | United States | Monahans, TX – Roy Hurd Memorial |
| MIO | United States | Miami, OK – Miami Munl |
| MIQ | United States | Omaha, NE – Millard |
| MIT | United States | Shafter, CA – Shafter (Minter Field) |
| MIV | United States | Millville, NJ – Millville Munl |
| MIW | United States | Marshalltown, IA – Marshalltown Munl |
| MJQ | United States | Jackson, MN – Jackson Munl |
| MJX | United States | Toms River, NJ – Robert J. Miller Air Park |
| MKC | United States | Kansas City, MO – Charles B. Wheeler Downtown |
| MKE | United States | Milwaukee, WI – General Mitchell Intl. |
| MKG | United States | Muskegon, MI – Muskegon County |
| MKK | United States | Kaunakakai, HI – Molokai |
| MKL | United States | Jackson, TN – Mc Kellar-Sipes Regional |
| MKO | United States | Muskogee, OK – Davis Field |
| MKT | United States | Mankato, MN – Mankato Regional |
| MLB | United States | Melbourne, FL – Melbourne Intl. |
| MLC | United States | McAlester, OK – McAlester Rgnl |
| MLD | United States | Malad City, ID – Malad City |
| MLF | United States | Milford, UT – Milford Munl (Ben and Judy Briscoe Field) |
| MLI | United States | Moline, IL – Quad City Intl. |
| MLJ | United States | Milledgeville, GA – Baldwin Cnty |
| MLK | United States | Malta, MT – Malta |
| MLL | United States | Marshall, AK – Marshall Don Hunter Sr. |
| MLS | United States | Miles City, MT – Frank Wiley Field |
| MLT | United States | Millinocket, ME – Millinocket Munl |
| MLU | United States | Monroe, LA – Monroe Regional |
| MLY | United States | Manley Hot Springs, AK – Manley Hot Springs |
| MMH | United States | Mammoth Lakes, CA – Mammoth Lakes |
| MMI | United States | Athens, TN – McMinn Cnty |
| MML | United States | Marshall, MN – Southwest Minnesota Rgnl (Marshall/Ryan Field) |
| MMN | United States | Stow, MA – Minute Man Air Field |
| MMS | United States | Marks, MS – Selfs |
| MMT | United States | Columbia, SC – Mc Entire Joint ANGBase |
| MMU | United States | Morristown, NJ – Morristown Municipal |
| MNM | United States | Menominee, MI – Menominee-Marinette Twin Cnty |
| MNN | United States | Marion, OH – Marion Munl |
| MNT | United States | Minto, AK – Minto Al Wright |
| MNZ | United States | Manassas, VA – Manassas Regional |
| MOB | United States | Mobile, AL – Mobile Regional |
| MOD | United States | Modesto, CA – Modesto City-County |
| MOP | United States | Mt Pleasant, MI – Mount Pleasant Municipal |
| MOR | United States | Morristown, TN – Moore-Murrell |
| MOS | United States | Elim, AK – Moses Point |
| MOT | United States | Minot, ND – Minot Intl. |
| MOU | United States | Mountain Village, AK – Mountain Village |
| MOX | United States | Morris, MN – Morris Munl |
| MPB | United States | Miami, FL – Watson Island Intl. Seaplane Base |
| MPJ | United States | Morrilton, AR – Petit Jean Park |
| MPO | United States | Mt Pocono, PA – Pocono Mountains Munl |
| MPR | United States | Mcpherson, KS – Mcpherson |
| MPS | United States | Mt Pleasant, TX – Mount Pleasant Rgnl |
| MPV | United States | Barre/Montpelier, VT – Edward F Knapp State |
| MPZ | United States | Mt Pleasant, IA – Mount Pleasant Munl |
| MQB | United States | Macomb, IL – Macomb Municipal |
| MQI | United States | Quincy, IL – Quincy Regional Airport |
| MQT | United States | Marquette, MI – Sawyer Intl. |
| MQW | United States | McRae, GA – Telfair–Wheeler |
| MQY | United States | Smyrna, TN – Smyrna |
| MRB | United States | Martinsburg, WV – Eastern West Virginia Regional |
| MRC | United States | Columbia, TN – Maury County |
| MRF | United States | Marfa, TX – Marfa Munl |
| MRI | United States | Anchorage, AK – Merrill Field |
| MRK | United States | Marco, FL – Marco Isl |
| MRN | United States | Morganton, NC – Foothills Rgnl (was Morganton-Lenoir) |
| MRY | United States | Monterey, CA – Monterey Regional |
| MSC | United States | Mesa, AZ – Falcon Field |
| MSD | United States | Mt Pleasant, UT – Mount Pleasant |
| MSL | United States | Muscle Shoals/Florence, AL – Northwest Alabama Regional |
| MSN | United States | Madison, WI – Dane County Regional |
| MSO | United States | Missoula, MT – Missoula Intl. |
| MSP | United States | Minneapolis/St. Paul, MN – Minneapolis-St Paul Intl. |
| MSS | United States | Massena, NY – Massena Intl. Airport-Richards Field |
| MSV | United States | Monticello, NY – Sullivan County Intl. |
| MSY | United States | New Orleans, LA – Louis Armstrong New Orleans Intl. |
| MTC | United States | Mount Clemens, MI – Selfridge Air Ntnl Guard Base |
| MTH | United States | Marathon, FL – Florida Keys Marathon Intl. |
| MTJ | United States | Montrose, CO – Montrose Regional |
| MTM | United States | Metlakatla, AK – Metlakatla Seaplane Base |
| MTN | United States | Baltimore, MD – Martin State |
| MTO | United States | Mattoon/Charleston, IL – Coles County Memorial |
| MTP | United States | Montauk, NY – Montauk |
| MTW | United States | Manitowoc, WI – Manitowoc County |
| MTX | United States | Fairbanks, AK – Metro Field |
| MUE | United States | Kamuela, HI – Waimea-Kohala |
| MUI | United States | Fort Indiantown Gap, PA – Muir AAField |
| MUL | United States | Moultrie, GA – Spence |
| MUO | United States | Mountain Home, ID – Mountain Home AFBase |
| MUT | United States | Muscatine, IA – Muscatine Munl |
| MVC | United States | Monroeville, AL – Monroe Cnty |
| MVE | United States | Montevideo, MN – Montevideo–Chippewa Cnty |
| MVL | United States | Morrisville/Stowe, VT – Morrisville–Stowe State |
| MVM | United States | Kayenta, AZ – Kayenta |
| MVN | United States | Mt Vernon, IL – Mount Vernon |
| MVW | United States | Burlington/Mount Vernon, WA – Bay View |
| MVY | United States | Vineyard Haven, MA – Martha’s Vineyard |
| MWA | United States | Marion, IL – Williamson County Regional |
| MWC | United States | Milwaukee, WI – Lawrence J. Timmerman |
| MWH | United States | Moses Lake, WA – Grant County Intl. |
| MWL | United States | Mineral Wells, TX – Mineral Wells |
| MWM | United States | Windom, MN – Windom Munl |
| MWO | United States | Middletown, OH – Middletown Regional Airport/Hook Field |
| MXA | United States | Manila, AR – Manila Munl |
| MXC | United States | Monticello, UT – Monticello |
| MXE | United States | Laurinburg/Maxton, NC – Laurinburg–Maxton |
| MXF | United States | Montgomery, AL – Maxwell AFBase |
| MXG | United States | Marlborough, MA – Marlboro |
| MXO | United States | Monticello, IA – Monticello Rgnl |
| MXY | United States | Mccarthy, AK – Mccarthy |
| MYF | United States | San Diego, CA – Montgomery Field |
| MYH | United States | Marble Canyon, AZ – Marble Canyon |
| MYK | United States | May Creek, AK – May Creek |
| MYL | United States | Mccall, ID – McCall Munl |
| MYR | United States | Myrtle Beach, SC – Myrtle Beach Intl. |
| MYU | United States | Mekoryuk, AK – Mekoryuk |
| MYV | United States | Marysville, CA – Yuba Cnty |
| MZJ | United States | Marana, AZ – Pinal Airpark |
| MZZ | United States | Marion, IN – Marion Municipal |
| NBG | United States | New Orleans, LA – NAS JRB New Orleans (Alvin Callender Field) |
| NCN | United States | Chenega, AK – Chenega Bay |
| NCO | United States | North Kingstown, RI – Quonset State |
| NEA | United States | Glynco, GA – Naval Air Station Glynco |
| NEL | United States | Lakehurst, NJ – NAES Lakehurst (Maxfield Field) |
| NEN | United States | Jacksonville, FL – NOLF Whitehouse |
| NEW | United States | New Orleans, LA – Lakefront |
| NFL | United States | Fallon, NV – NAS Fallon (Van Voorhis Field) |
| NGF | United States | Kaneohe, HI – MCAS Kaneohe Bay |
| NGP | United States | Corpus Christi, TX – NAS Corpus Christi (Truax Field) |
| NGU | United States | Norfolk, VA – NS Norfolk (Chambers Field) |
| NGW | United States | Corpus Christi, TX – NOLF Cabaniss Field |
| NHK | United States | Patuxent River, MD – NAS Patuxent River (Trapnell Field) |
| NHX | United States | Foley, AL – NOLF Barin |
| NHZ | United States | Brunswick, ME – Brunswick Executive |
| NIB | United States | Nikolai, AK – Nikolai |
| NIN | United States | Ninilchik, AK – Ninilchik |
| NIP | United States | Jacksonville, FL – NAS Jacksonville (Towers Field) |
| NIR | United States | Beeville, TX – Chase Field Industrial Complex |
| NJK | United States | El Centro, CA – NAF El Centro |
| NKI | United States | Naukati Bay, AK – Naukiti Bay Seaplane Base |
| NKX | United States | San Diego, CA – MCAS Miramar |
| NLC | United States | Lemoore, CA – NAS Lemoore (Reeves Field) |
| NLE | United States | Niles, MI – Jerry Tyler Memorial |
| NLG | United States | Nelson Lagoon, AK – Nelson Lagoon |
| NLN | United States | Arcata/Eureka, CA – Kneeland |
| NME | United States | Nightmute, AK – Nightmute |
| NNK | United States | Naknek, AK – Naknek |
| NNL | United States | Nondalton, AK – Nondalton |
| NOT | United States | Novato, CA – Gnoss Field |
| NPA | United States | Pensacola, FL – Pensacola, Naval Air Station |
| NPH | United States | Nephi, UT – Nephi Munl |
| NPT | United States | Newport, RI – Newport State |
| NQA | United States | Millington, TN – Millington Rgnl Jetport |
| NQI | United States | Kingsville, TX – NAS Kingsville |
| NQX | United States | Key West, FL – NAS Key West (Boca Chica Field) |
| NRB | United States | Mayport, FL – NS Mayport (Admiral David L. McDonald Field) |
| NRC | United States | Crows Landing, CA – NASA Crows Landing |
| NRI | United States | Shangri La/Afton, OK – Grand Lake Rgnl |
| NRR | United States | Ceiba, PR – José Aponte de la Torre |
| NRS | United States | Imperial Beach, CA – NOLF Imperial Beach (Ream Field) |
| NSE | United States | Milton, FL – NAS Whiting Field – North |
| NSL | United States | Slayton, MN – Slayton Munl |
| NTD | United States | Port Hueneme/Oxnard, CA – NAS Point Mugu (Naval Base Ventura Cnty) |
| NTJ | United States | Manti, UT – Manti-Ephraim |
| NTU | United States | Virginia Beach, VA – NAS Oceana (Apollo Soucek Field) |
| NUI | United States | Nuiqsut, AK – Nuiqsut |
| NUL | United States | Nulato, AK – Nulato |
| NUN | United States | Pensacola, FL – NOLF Saufley Field |
| NUP | United States | Nunapitchuk, AK – Nunapitchuk |
| NUQ | United States | Mountain View, CA – Moffett Federal Airfield |
| NUW | United States | Oak Harbor, WA – NAS Whidbey Isl (Ault Field) |
| NVD | United States | Nevada, MO – Nevada Munl |
| NVN | United States | Beckwourth, CA – Nervino |
| NWH | United States | Newport, NH – Parlin Field |
| NYC | United States | New York City, NY – All airports |
| NYG | United States | Quantico, VA – MCAF Quantico (Turner Field) |
| NZY | United States | San Diego, CA – NAS North Isl (Halsey Field) |
| OAJ | United States | Jacksonville, NC – Albert J Ellis |
| OAK | United States | Oakland, CA – Oakland Intl. |
| OAR | United States | Monterey/Marina, CA – Marina Munl |
| OBE | United States | Okeechobee, FL – Okeechobee Cnty |
| OBU | United States | Kobuk, AK – Kobuk |
| OCA | United States | Key Largo, FL – Ocean Reef Club |
| OCF | United States | Ocala, FL – Ocala Intl. |
| OCH | United States | Nacogdoches, TX – A L Mangham Jr. Regional |
| OCN | United States | Oceanside, CA – Oceanside Municipal |
| OCW | United States | Washington, NC – Washington–Warren (Warren Field) |
| ODC | United States | Oakdale, CA – Oakdale |
| ODM | United States | Oakland, MD – Garrett County |
| ODW | United States | Oak Harbor, WA – AJ Eisenberg |
| OEO | United States | Osceola, WI – L.O. Simenstad Munl |
| OFF | United States | Omaha, NE – Offutt AFBase |
| OFK | United States | Norfolk, NE – Karl Stefan Memorial |
| OFU | United States | Ofu Isl, – Ofu |
| OGA | United States | Ogallala, NE – Searle |
| OGB | United States | Orangeburg, SC – Orangeburg Municipal |
| OGD | United States | Ogden, UT – Ogden Municipal |
| OGG | United States | Kahului, HI – Kahului |
| OGS | United States | Ogdensburg, NY – Ogdensburg Intl. |
| OIC | United States | Norwich, NY – Lt. Warren Eaton |
| OJC | United States | Olathe, KS – Johnson Cnty Executive |
| OKC | United States | Oklahoma City, OK – Will Rogers World |
| OKK | United States | Kokomo, IN – Kokomo Municipal |
| OKM | United States | Okmulgee, OK – Okmulgee Rgnl |
| OKS | United States | Oshkosh, NE – Garden Cnty |
| OLD | United States | Old Town, ME – Old Town Munl and SPBase (Dewitt Field) |
| OLE | United States | Olean, NY – Cattaraugus County-Olean |
| OLF | United States | Wolf Point, MT – L. M. Clayton |
| OLH | United States | Old Harbor, AK – Old Harbor |
| OLM | United States | Olympia, WA – Olympia Regional |
| OLS | United States | Nogales, AZ – Nogales Intl |
| OLU | United States | Columbus, NE – Columbus Munl |
| OLV | United States | Olive Branch, MS – Olive Branch |
| OLY | United States | Olney/Noble, IL – Olney-Noble |
| OMA | United States | Omaha, NE – Eppley Airfield |
| OME | United States | Nome, AK – Nome |
| OMK | United States | Omak, WA – Omak |
| ONA | United States | Winona, MN – Winona Municipal Airport-Max Conrad Field |
| ONH | United States | Oneonta, NY – Oneonta Municipal |
| ONL | United States | O’Neill, NE – The O’Neill Municipal |
| ONM | United States | Socorro, NM – Socorro Munl |
| ONO | United States | Ontario, OR – Ontario Municipal |
| ONP | United States | Newport, OR – Newport Municipal |
| ONT | United States | Ontario, CA – Ontario Intl. |
| ONY | United States | Olney, TX – Olney Munl |
| OOA | United States | Oskaloosa, IA – Oskaloosa Munl |
| OOK | United States | Toksook Bay, AK – Toksook Bay |
| OPF | United States | Miami, FL – Opa-locka Executive |
| OPL | United States | Opelousas, LA – St. Landry Parish |
| ORD | United States | Chicago, IL – Chicago O’Hare Intl. |
| ORF | United States | Norfolk, VA – Norfolk Intl. |
| ORH | United States | Worcester, MA – Worcester, Worcester Regional |
| ORI | United States | Port Lions, AK – Port Lions |
| ORL | United States | Orlando, FL – All airports |
| ORT | United States | Northway, AK – Northway |
| ORV | United States | Noorvik, AK – Robert (Bob) Curtis Memorial |
| OSB | United States | Osage Beach, MO – Grand Glaize- Osage Beach |
| OSC | United States | Oscoda, MI – Oscoda–Wurtsmith |
| OSH | United States | Oshkosh, WI – Wittman Regional |
| OSU | United States | Columbus, OH – Ohio State University |
| OSX | United States | Kosciusko, MS – Kosciusko-Attala Cnty |
| OTG | United States | Worthington, MN – Worthington Munl |
| OTH | United States | North Bend, OR – Southwest Oregon Regional |
| OTK | United States | Tillamook, OR – Tillamook |
| OTM | United States | Ottumwa, IA – Ottumwa Industrial |
| OTN | United States | Oaktown, IN – Ed-Air |
| OTS | United States | Anacortes, WA – Anacortes |
| OTZ | United States | Kotzebue, AK – Ralph Wien Memorial |
| OUN | United States | Norman, OK – University of Oklahoma Westheimer (Max Westheimer) |
| OVE | United States | Oroville, CA – Oroville Municipal |
| OWA | United States | Owatonna, MN – Owatonna Degner Regional |
| OWB | United States | Owensboro, KY – Owensboro-Daviess County Regional |
| OWD | United States | Norwood, MA – Norwood Memorial |
| OWK | United States | Norridgewock, ME – Central Maine of Norridgewock |
| OXC | United States | Oxford, CT – Waterbury-Oxford |
| OXD | United States | Oxford, OH – Miami University |
| OXR | United States | Oxnard, CA – Oxnard |
| OZA | United States | Ozona, TX – Ozona Munl |
| OZR | United States | Fort Rucker/Ozark, AL – Cairns AAField |
| PAE | United States | Everett, WA – Snohomish County Airport (Paine Field) |
| PAH | United States | Paducah, KY – Barkley Regional |
| PAK | United States | Hanapepe, HI – Port Allen |
| PAM | United States | Panama City, FL – Tyndall AFBase |
| PAO | United States | Palo Alto, CA – Palo Alto (Santa Clara Cnty) |
| PAQ | United States | Palmer, AK – Palmer Munl |
| PBF | United States | Pine Bluff, AR – Grider Field |
| PBG | United States | Plattsburgh, NY – Plattsburgh Air Force Base |
| PBI | United States | West Palm Beach, FL – Palm Beach Intl. |
| PCA | United States | Portage Creek, AK – Portage Creek |
| PCD | United States | Prairie Du Chien, WI – Prairie du Chien Munl |
| PCT | United States | Princeton/Rocky Hill, NJ – Princeton |
| PCU | United States | Poplarville/Picayune, MS – Pearl River Cnty |
| PDB | United States | Pedro Bay, AK – Pedro Bay |
| PDK | United States | Atlanta, GA – Dekalb-Peachtree |
| PDT | United States | Pendleton, OR – Eastern Oregon Regional |
| PDX | United States | Portland, OR – Portland Intl. |
| PEC | United States | Pelican, AK – Pelican Seaplane Base |
| PEQ | United States | Pecos, TX – Pecos Munl |
| PFC | United States | Pacific City, OR – Pacific City State |
| PFN | United States | Panama City, FL – Bay County |
| PGA | United States | Page, AZ – Page Municipal |
| PGC | United States | Petersburg, WV – Grant Cnty |
| PGD | United States | Punta Gorda, FL – Punta Gorda |
| PGL | United States | Pascagoula, MS – Trent Lott Intl |
| PGM | United States | Port Graham, AK – Port Graham |
| PGO | United States | Pagosa Springs, CO – Stevens Field |
| PGR | United States | Paragould, AR – Kirk Field |
| PGS | United States | Peach Springs, AZ – Grand Canyon Caverns |
| PGV | United States | Greenville, NC – Pitt-Greenville |
| PHD | United States | New Philadelphia, OH – Harry Clever Field |
| PHF | United States | Newport News/Williamsburg, VA – Newport News-Williamsburg Intl. |
| PHK | United States | Pahokee, FL – Palm Beach Cnty Glades |
| PHL | United States | Philadelphia, PA – Philadelphia Intl. |
| PHN | United States | Port Huron, MI – St Clair County Intl. |
| PHO | United States | Point Hope, AK – Point Hope |
| PHP | United States | Philip, SD – Philip |
| PHT | United States | Paris, TN – Henry County |
| PHX | United States | Phoenix, AZ – Phoenix Sky Harbor Intl. |
| PIA | United States | Peoria, IL – General Downing – Peoria Intl. |
| PIB | United States | Hattiesburg/Laurel, MS – Hattiesburg-Laurel Regional |
| PIE | United States | St. Petersburg/Clearwater, FL – St. Petersburg-Clearwater Intl. |
| PIH | United States | Pocatello, ID – Pocatello Regional |
| PIM | United States | Pine Mountain, GA – Harris Cnty |
| PIP | United States | Pilot Point, AK – Pilot Point |
| PIR | United States | Pierre, SD – Pierre Municipal |
| PIT | United States | Pittsburgh, PA – Pittsburgh Intl. |
| PIZ | United States | Point Lay, AK – Point Lay LRRS |
| PJB | United States | Payson, AZ – Payson |
| PKA | United States | Napaskiak, AK – Napaskiak |
| PKB | United States | Parkersburg, WV – Wood County |
| PKD | United States | Park Rapids, MN – Park Rapids Munl (Konshok Field) |
| PKF | United States | Park Falls, WI – Park Falls Munl |
| PLK | United States | Point Lookout, MO – M. Graham Clark Downtown |
| PLN | United States | Pellston, MI – Pellston Regional Airport of Emmet County |
| PLR | United States | Pell City, AL – St. Clair Cnty |
| PLY | United States | Plymouth, IN – Plymouth Munl |
| PMB | United States | Pembina, ND – Pembina Munl |
| PMD | United States | Palmdale, CA – Palmdale United States Air Force Plant 42 |
| PMH | United States | Portsmouth, OH – Greater Portsmouth Rgnl |
| PML | United States | Cold Bay, AK – Port Moller |
| PMX | United States | Palmer, MA – Palmer |
| PNC | United States | Ponca City, OK – Ponca City Regional |
| PNE | United States | Philadelphia, PA – North Philadelphia |
| PNN | United States | Princeton, ME – Princeton Munl |
| PNS | United States | Pensacola, FL – Pensacola Intl. |
| PNU | United States | Panguitch, UT – Panguitch Munl |
| PNX | United States | Sherman/Denison, TX – North Texas Rgnl |
| POB | United States | Fort Bragg/Fayetteville, NC – Pope AFBase |
| POC | United States | La Verne, CA – Brackett Field |
| POE | United States | Fort Polk, LA – Polk AAField |
| POF | United States | Poplar Bluff, MO – Poplar Bluff Municipal |
| POH | United States | Pocahontas, IA – Pocahontas Munl |
| POU | United States | Poughkeepsie, NY – Dutchess County |
| POY | United States | Powell/Lovell, WY – Powell Munl |
| PPA | United States | Pampa, TX – Perry Lefors Field |
| PPC | United States | Prospect Creek, AK – Prospect Creek |
| PPF | United States | Parsons, KS – Tri-City |
| PPM | United States | Pompano Beach, FL – Pompano Beach Airpark |
| PPV | United States | Port Protection, AK – Port Protection Seaplane Base |
| PQI | United States | Presque Isle, ME – Northern Maine Regional Airport at Presque Isle |
| PQS | United States | Pilot Station, AK – Pilot Station |
| PRB | United States | Paso Robles, CA – Paso Robles Municipal |
| PRC | United States | Prescott, AZ – Ernest A. Love Field |
| PRO | United States | Perry, IA – Perry Munl |
| PRW | United States | Prentice, WI – Prentice |
| PRX | United States | Paris, TX – Cox Field |
| PRZ | United States | Prineville, OR – Prineville |
| PSB | United States | Philipsburg, PA – Mid-State |
| PSC | United States | Pasco, WA – Tri-Cities |
| PSE | United States | Ponce, PR – Mercedita |
| PSF | United States | Pittsfield, MA – Pittsfield Municipal |
| PSG | United States | Petersburg, AK – Petersburg James A. Johnson |
| PSK | United States | Dublin, VA – New River Valley |
| PSM | United States | Portsmouth, NH – Portsmouth Intl. Airport at Pease |
| PSN | United States | Palestine, TX – Palestine Municipal |
| PSP | United States | Palm Springs, CA – Palm Springs Intl. |
| PSQ | United States | Philadelphia, PA – Philadelphia SPBase |
| PSX | United States | Palacios, TX – Palacios Munl |
| PTA | United States | Port Alsworth, AK – Port Alsworth |
| PTB | United States | Petersburg, VA – Petersburg, Dinwiddie County |
| PTC | United States | Port Alice, AK – Port Alice SPBase |
| PTD | United States | Port Alexander, AK – Port Alexander SPBase |
| PTH | United States | Port Heiden, AK – Port Heiden |
| PTK | United States | Pontiac, MI – Oakland County Intl. |
| PTN | United States | Patterson, LA – Harry P. Williams Memorial |
| PTS | United States | Pittsburg, KS – Atkinson Municipal |
| PTT | United States | Pratt, KS – Pratt Rgnl |
| PTU | United States | Platinum, AK – Platinum |
| PTV | United States | Porterville, CA – Porterville Munl |
| PTW | United States | Pottstown, PA – Pottstown Limerick |
| PUB | United States | Pueblo, CO – Pueblo Memorial |
| PUC | United States | Price, UT – Carbon Cnty Rgnl |
| PUL | United States | Poulsbo, WA – Port of Poulsbo Marina Moorage SPBase |
| PUW | United States | Pullman/Moscow, WA – Pullman-Moscow Regional |
| PVC | United States | Provincetown, MA – Provincetown Municipal |
| PVD | United States | Providence, RI – Theodore Francis Green State |
| PVF | United States | Placerville, CA – Placerville |
| PVL | United States | Pikeville, KY – Pike Cnty |
| PVU | United States | Provo, UT – Provo Municipal |
| PVW | United States | Plainview, TX – Hale Cnty |
| PWA | United States | Oklahoma City, OK – Wiley Post |
| PWD | United States | Plentywood, MT – Sher-Wood |
| PWK | United States | Chicago, IL – Chicago Executive |
| PWM | United States | Portland, ME – Portland Intl. Jetport |
| PWR | United States | Port Walter, AK – Port Walter SPBase |
| PWT | United States | Bremerton, WA – Bremerton National |
| PWY | United States | Pinedale, WY – Ralph Wenz Field |
| PXL | United States | Polacca, AZ – Polacca |
| PYL | United States | Perry, AK – Perry Isl SPBase |
| PYM | United States | Plymouth, MA – Plymouth Municipal |
| PYS | United States | Paradise, CA – Paradise Skypark |
| QWG | United States | Charlotte, NC – Wilgrove Air Park |
| RAC | United States | Racine, WI – John H Batten Field |
| RAL | United States | Riverside, CA – Riverside Municipal |
| RAP | United States | Rapid City, SD – Rapid City Regional |
| RBD | United States | Dallas, TX – Dallas Executive |
| RBF | United States | Big Bear, CA – Big Bear City |
| RBG | United States | Roseburg, OR – Roseburg Regional |
| RBH | United States | Brooks Lodge, AK – Brooks Lodge Seaplane Base |
| RBK | United States | Rancho/Murrieta/Temecula, CA – French Valley |
| RBL | United States | Red Bluff, CA – Red Bluff Munl |
| RBW | United States | Walterboro, SC – Lowcountry Regional |
| RBY | United States | Ruby, AK – Ruby |
| RCA | United States | Rapid City, SD – Ellsworth AFBase |
| RCE | United States | Roche Harbor, WA – Roche Harbor Seaplane Base |
| RCK | United States | Rockdale, TX – H. H. Coffield Rgnl |
| RCR | United States | Rochester, IN – Fulton Cnty |
| RCT | United States | Reed City, MI – Nartron Field |
| RDB | United States | Red Dog, AK – Red Dog |
| RDD | United States | Redding, CA – Redding Municipal |
| RDG | United States | Reading, PA – Reading Municipal |
| RDM | United States | Redmond/Bend, OR – Roberts Field-Redmond Municipal |
| RDR | United States | Grand Forks, ND – Grand Forks AFBase |
| RDU | United States | Raleigh/Durham, NC – Raleigh-Durham Intl. |
| RDV | United States | Red Devil, AK – Red Devil |
| RED | United States | Reedsville/Lewistown, PA – Mifflin Cnty |
| REE | United States | Lubbock, TX – Reese Airpark |
| REO | United States | Rome, OR – Rome State |
| RFD | United States | Rockford, IL – Chicago/Rockford Intl. |
| RFG | United States | Refugio, TX – Rooke Field |
| RFK | United States | Anguilla, MS – Rollang Field |
| RGR | United States | Ranger, TX – Ranger Munl |
| RHI | United States | Rhinelander, WI – Rhinelander-Oneida County |
| RHV | United States | San Jose, CA – Reid–Hillview of Santa Clara Cnty |
| RIC | United States | Richmond, VA – Richmond Intl. |
| RID | United States | Richmond, IN – Richmond Municipal |
| RIE | United States | Rice Lake, WI – Rice Lake Rgnl (Carl’s Field) |
| RIF | United States | Richfield, UT – Richfield Munl |
| RIL | United States | Rifle, CO – Garfield Cnty Rgnl |
| RIR | United States | Riverside, CA – Flabob |
| RIV | United States | Riverside, CA – March Air Reserve Base |
| RIW | United States | Riverton, WY – Riverton Regional |
| RKD | United States | Rockland, ME – Knox County Regional |
| RKH | United States | Rock Hill, SC – Rock Hill, Rock Hill – York County |
| RKP | United States | Rockport, TX – Aransas Cnty |
| RKR | United States | Poteau, OK – Robert S. Kerr |
| RKS | United States | Rock Springs, WY – Rock Springs-Sweetwater County |
| RKW | United States | Rockwood, TN – Rockwood Munl |
| RLD | United States | Richland, WA – Richland |
| RME | United States | Rome, NY – Griffiss Intl |
| RMG | United States | Rome, GA – Richard B Russell |
| RMP | United States | Rampart, AK – Rampart |
| RMY | United States | Mariposa, CA – Mariposa-Yosemite |
| RNC | United States | Mcminnville, TN – Warren Cnty Memorial |
| RND | United States | San Antonio, TX – Randolph AFBase |
| RNG | United States | Rangely, CO – Rangely |
| RNH | United States | New Richmond, WI – New Richmond Rgnl |
| RNO | United States | Reno, NV – Reno/Tahoe Intl. |
| RNT | United States | Renton, WA – Renton Municipal |
| RNZ | United States | Rensselaer, IN – Jasper Cnty |
| ROA | United States | Roanoke, VA – Roanoke Regional Airport-Woodrum Field |
| ROC | United States | Rochester, NY – Greater Rochester Intl. |
| ROF | United States | Montague/Yreka, CA – Montague (Yreka Rohrer Field) |
| ROG | United States | Rogers, AR – Rogers Municipal |
| ROL | United States | Roosevelt, UT – Roosevelt Munl |
| ROW | United States | Roswell, NM – Roswell Industrial Air Center |
| ROX | United States | Roseau, MN – Roseau Munl (Rudy Billberg Field) |
| RPX | United States | Roundup, MT – Roundup |
| RRL | United States | Merrill, WI – Merrill Munl |
| RRT | United States | Warroad, MN – Warroad Intl Memorial (Swede Carlson Field) |
| RSH | United States | Russian Mission, AK – Russian Mission |
| RSJ | United States | Orcas Isl, WA – Rosario Seaplane Base |
| RSL | United States | Russell, KS – Russell Munl |
| RSN | United States | Ruston, LA – Ruston Rgnl |
| RST | United States | Rochester, MN – Rochester, Rochester Intl. |
| RSW | United States | Fort Myers, FL – Southwest Florida Intl. |
| RSX | United States | Rouses Point, NY – Rouses Point SPBase |
| RTL | United States | Spirit Lake, IA – Spirit Lake Munl |
| RTN | United States | Raton, NM – Raton Munl (Crews Field) |
| RUI | United States | Ruidoso, NM – Sierra Blanca Regional |
| RUT | United States | Rutland, VT – Rutland – Southern Vermont Regional |
| RVR | United States | Green River, UT – Green River Munl |
| RVS | United States | Tulsa, OK – Richard Lloyd Jones Jr |
| RWF | United States | Redwood Falls, MN – Redwood Falls Munl |
| RWI | United States | Rocky Mount, NC – Rocky Mount-Wilson Regional |
| RWL | United States | Rawlins, WY – Rawlins Munl (Harvey Field) |
| RXE | United States | Rexburg, ID – Rexburg–Madison Cnty |
| RZZ | United States | Roanoke Rapids, NC – Halifax County |
| SAA | United States | Saratoga, WY – Shively Field |
| SAC | United States | Sacramento, CA – Sacramento Executive |
| SAD | United States | Safford, AZ – Safford Rgnl |
| SAF | United States | Santa Fe, NM – Santa Fe Municipal |
| SAN | United States | San Diego, CA – San Diego Intl. |
| SAR | United States | Sparta, IL – Sparta Community (Hunter Field) |
| SAS | United States | Salton City, CA – Salton Sea |
| SAT | United States | San Antonio, TX – San Antonio Intl. |
| SAV | United States | Savannah, GA – Savannah Intl. |
| SBA | United States | Santa Barbara, CA – Santa Barbara Municipal |
| SBD | United States | San Bernardino, CA – San Bernardino Intl. |
| SBM | United States | Sheboygan, WI – Sheboygan County Memorial |
| SBN | United States | South Bend, IN – South Bend Intl. |
| SBO | United States | Salina/Gunnison, UT – Salina-Gunnison |
| SBP | United States | San Luis Obispo, CA – San Luis Obispo County |
| SBS | United States | Steamboat Springs, CO – Steamboat Springs-Bob Adams Field Stolport |
| SBX | United States | Shelby, MT – Shelby |
| SBY | United States | Salisbury/Ocean City, MD – Salisbury-Ocean City-Wicomico Regional |
| SCB | United States | Scribner, NE – Scribner State |
| SCC | United States | Prudhoe Bay/Deadhorse, AK – Deadhorse |
| SCE | United States | State College, PA – Penn State University Park |
| SCF | United States | Scottsdale, AZ – Scottsdale Munl |
| SCH | United States | Schenectady, NY – Schenectady County |
| SCK | United States | Stockton, CA – Stockton Metropolitan |
| SCM | United States | Scammon Bay, AK – Scammon Bay |
| SDF | United States | Louisville, KY – Louisville Intl. |
| SDM | United States | San Diego, CA – Brown Field Munl |
| SDP | United States | Sand Point, AK – Sand Point |
| SDX | United States | Sedona, AZ – Sedona |
| SDY | United States | Sidney, MT – Sidney-Richland Municipal |
| SEA | United States | Seattle, WA – Seattle-Tacoma Intl. |
| SEE | United States | San Diego, CA – Gillespie Field |
| SEF | United States | Sebring, FL – Sebring Regional |
| SEG | United States | Selinsgrove, PA – Penn Valley |
| SEM | United States | Selma, AL – Craig Field |
| SEP | United States | Stephenville, TX – Stephenville Clark Regional |
| SER | United States | Seymour, IN – Freeman Munl |
| SFB | United States | Orlando, FL – Orlando Sanford Intl. |
| SFF | United States | Spokane, WA – Felts Field |
| SFM | United States | Sanford, ME – Sanford Seacoast Regional |
| SFO | United States | San Francisco, CA – San Francisco Intl. |
| SFY | United States | Springfield, MA – All airports |
| SFZ | United States | Pawtucket, RI – North Central State |
| SGF | United States | Springfield, MO – Springfield-Branson National |
| SGH | United States | Springfield, OH – Springfield-Beckley Municipal |
| SGR | United States | Houston, TX – Houston, Sugar Land Municipal / Hull Field |
| SGT | United States | Stuttgart, AR – Stuttgart Munl |
| SGU | United States | St. George, UT – Saint George Municipal |
| SGW | United States | Saginaw Bay, AK – Saginaw SPBase |
| SGY | United States | Skagway, AK – Skagway |
| SHD | United States | Staunton/Waynesboro/Harrisonburg, VA – Shenandoah Valley Regional |
| SHG | United States | Shungnak, AK – Shungnak |
| SHH | United States | Shishmaref, AK – Shishmaref |
| SHN | United States | Shelton, WA – Sanderson Field |
| SHR | United States | Sheridan, WY – Sheridan County |
| SHV | United States | Shreveport, LA – Shreveport Regional |
| SHX | United States | Shageluk, AK – Shageluk |
| SIG | United States | San Juan, PR – Fernando Luis Ribas Dominicci |
| SIK | United States | Sikeston, MO – Sikeston Memorial Municipal |
| SIT | United States | Sitka, AK – Sitka Rocky Gutierrez |
| SIV | United States | Sullivan, IN – Sullivan Cnty |
| SIY | United States | Montague/Yreka, CA – Siskiyou Cnty |
| SJC | United States | San Jose, CA – Norman Y. Mineta San Jose Intl. |
| SJF | United States | Saint John, – Cruz Bay SPBase |
| SJN | United States | St. Johns, AZ – St. Johns Industrial Air Park |
| SJT | United States | San Angelo, TX – Mathis Field |
| SJU | United States | San Juan, PR – Luis Munoz Marin Intl. |
| SKA | United States | Spokane, WA – Fairchild AFBase |
| SKF | United States | San Antonio, TX – Kelly Field Annex/Lackland AFBase |
| SKK | United States | Shaktoolik, AK – Shaktoolik |
| SKW | United States | Skwentna, AK – Skwentna |
| SKY | United States | Sandusky, OH – Griffing Sandusky |
| SLB | United States | Storm Lake, IA – Storm Lake Munl |
| SLC | United States | Salt Lake City, UT – Salt Lake City Intl. |
| SLE | United States | Salem, OR – McNary Field |
| SLG | United States | Siloam Springs, AR – Smith Field |
| SLK | United States | Saranac Lake, NY – Adirondack Regional |
| SLN | United States | Salina, KS – Salina Municipal |
| SLO | United States | Salem, IL – Salem–Leckrone |
| SLQ | United States | Sleetmute, AK – Sleetmute |
| SLR | United States | Sulphur Springs, TX – Sulphur Springs Munl |
| SLT | United States | Salida, CO – Harriet Alexander Field |
| SMD | United States | Fort Wayne, IN – Smith Field |
| SME | United States | Somerset, KY – Lake Cumberland Regional |
| SMF | United States | Sacramento, CA – Sacramento Intl. |
| SMK | United States | St. Michael, AK – St. Michael |
| SMN | United States | Salmon, ID – Lemhi Cnty |
| SMO | United States | Santa Monica, CA – Santa Monica Municipal |
| SMU | United States | Sheep Mountain, AK – Sheep Mountain |
| SMX | United States | Santa Maria, CA – Santa Maria |
| SNA | United States | Santa Ana, CA – John Wayne Airport-Orange County |
| SNK | United States | Snyder, TX – Winston Field |
| SNL | United States | Shawnee, OK – Shawnee Rgnl |
| SNP | United States | St. Paul Isl, AK – Saint Paul Island |
| SNS | United States | Salinas, CA – Salinas Municipal |
| SNY | United States | Sidney, NE – Sidney Munl (Lloyd W. Carr Field) |
| SOL | United States | Solomon, AK – Solomon State Field |
| SOP | United States | Pinehurst/Southern Pines, NC – Moore Cnty |
| SOV | United States | Seldovia, AK – Seldovia |
| SOW | United States | Show Low, AZ – Show Low Municipal |
| SPA | United States | Spartanburg, SC – Spartanburg Downtown Memorial |
| SPF | United States | Spearfish, SD – Black Hills |
| SPG | United States | St. Petersburg, FL – Albert Whitted |
| SPI | United States | Springfield, IL – Abraham Lincoln Capital |
| SPS | United States | Wichita Falls, TX – Sheppard Air Force Base/Wichita Falls Municipal |
| SPW | United States | Spencer, IA – Spencer Municipal |
| SPZ | United States | Springdale, AR – Springdale Munl |
| SQA | United States | Santa Ynez, CA – Santa Ynez |
| SQI | United States | Sterling/Rock Falls, IL – Whiteside Cnty (Jos. H. Bittorf Field) |
| SQL | United States | San Carlos, CA – San Carlos |
| SQV | United States | Sequim, WA – Sequim Valley |
| SRC | United States | Searcy, AR – Searcy Municipal |
| SRF | United States | San Rafael, CA – San Rafael (Hamilton Field) |
| SRQ | United States | Sarasota/Bradenton, FL – Sarasota / Bradenton Intl. |
| SRV | United States | Stony River, AK – Stony River 2 |
| SRW | United States | Salisbury, NC – Rowan Cnty |
| SSC | United States | Sumter, SC – Shaw Air Force Base |
| SSF | United States | San Antonio, TX – Stinson Munl |
| SSI | United States | Brunswick, GA – Malcolm McKinnon |
| SSM | United States | Sault Ste Marie, MI – Sault Ste Marie Municipal |
| SSW | United States | Stuart, WA – Stuart Isl Airpark |
| STC | United States | St. Cloud, MN – St. Cloud Regional |
| STE | United States | Stevens Point, WI – Stevens Point Municipal |
| STG | United States | St. George, AK – St. George |
| STJ | United States | St. Joseph, MO – Rosecrans Memorial |
| STK | United States | Sterling, CO – Sterling Munl |
| STL | United States | Saint Louis, MO – Lambert-St. Louis Intl. |
| STP | United States | St. Paul/Minneapolis, MN – St. Paul Downtown |
| STQ | United States | St. Marys, PA – St. Marys Munl |
| STS | United States | Santa Rosa, CA – Sonoma County |
| SUA | United States | Stuart, FL – Witham Field |
| SUD | United States | Stroud, OK – Stroud Munl |
| SUE | United States | Sturgeon Bay, WI – Door County Cherryland |
| SUM | United States | Sumter, SC – Sumter |
| SUN | United States | Hailey/Sun Valley, ID – Friedman Memorial |
| SUO | United States | Sunriver, OR – Sunriver |
| SUS | United States | St. Louis/Chesterfield, MO – Spirit of St Louis |
| SUU | United States | Fairfield, CA – Travis Air Force Base |
| SUW | United States | Superior, WI – Richard I. Bong |
| SUX | United States | Sioux City, IA – Sioux Gateway Airport/Col. Bud Day Field |
| SVA | United States | Savoonga, AK – Savoonga |
| SVC | United States | Silver City, NM – Silver City |
| SVE | United States | Susanville, CA – Susanville Munl |
| SVH | United States | Statesville, NC – Statesville Rgnl |
| SVN | United States | Savannah, GA – Hunter AAField |
| SVS | United States | Stevens Village, AK – Stevens Village |
| SVW | United States | Sparrevohn, AK – Sparrevohn LRRS |
| SWD | United States | Seward, AK – Seward |
| SWF | United States | Newburgh, NY – Stewart Intl. |
| SWI | United States | Sherman, TX – Sherman Municipal Airport |
| SWO | United States | Stillwater, OK – Stillwater Regional |
| SWW | United States | Sweetwater, TX – Avenger Field |
| SXP | United States | Nunam Iqua, AK – Nunam Iqua |
| SXQ | United States | Soldotna, AK – Soldotna |
| SXY | United States | Sidney, NY – Sidney Munl |
| SYA | United States | Shemya, AK – Eareckson Air Station |
| SYB | United States | Seal Bay, AK – Seal Bay Seaplane Base |
| SYI | United States | Shelbyville, TN – Shelbyville Municipal |
| SYN | United States | Stanton, MN – Stanton Airfield |
| SYR | United States | Syracuse, NY – Syracuse Hancock Intl. |
| SYV | United States | Sylvester, GA – Sylvester |
| SZL | United States | Knob Noster, MO – Whiteman AFBase |
| SZN | United States | Santa Cruz Isl, CA – Santa Cruz Isl |
| SZP | United States | Santa Paula, CA – Santa Paula |
| TAD | United States | Trinidad, CO – Perry Stokes |
| TAL | United States | Tanana, AK – Ralph M Calhoun Memorial |
| TAV | United States | Tau, – Tau |
| TBC | United States | Tuba City, AZ – Tuba City |
| TBN | United States | Fort Leonard Wood, MO – Waynesville-St. Robert Regional |
| TBR | United States | Statesboro, GA – Statesboro-Bulloch County |
| TCC | United States | Tucumcari, NM – Tucumcari Munl |
| TCL | United States | Tuscaloosa, AL – Tuscaloosa Municipal |
| TCM | United States | Tacoma, WA – McChord Field Airport (Joint Base Lewis-McChord) |
| TCS | United States | Truth Or Consequences, NM – Truth or Consequences Munl |
| TCT | United States | Takotna, AK – Takotna |
| TDO | United States | Toledo, WA – South Lewis Cnty (Ed Carlson Memorial Field) |
| TDW | United States | Amarillo, TX – Tradewind |
| TDZ | United States | Toledo, OH – Toledo Executive |
| TEB | United States | Teterboro, NJ – Teterboro |
| TEH | United States | Tetlin, AK – Tetlin |
| TEK | United States | Tatitlek, AK – Tatitlek |
| TEX | United States | Telluride, CO – Telluride Regional |
| TGE | United States | Tuskegee, AL – Sharpe Field |
| THA | United States | Tullahoma, TN – Tullahoma Rgnl (William Northern Field) |
| THM | United States | Thompson Falls, MT – Thompson Falls |
| THP | United States | Thermopolis, WY – Hot Springs Cnty–Thermopolis Munl |
| THV | United States | York, PA – York |
| TIK | United States | Oklahoma City, OK – Tinker AFBase |
| TIW | United States | Tacoma, WA – Tacoma Narrows |
| TIX | United States | Titusville, FL – Space Coast Regional |
| TKA | United States | Talkeetna, AK – Talkeetna |
| TKE | United States | Tenakee Springs, AK – Tenakee Seaplane Base |
| TKF | United States | Truckee, CA – Truckee Tahoe |
| TKI | United States | Tokeen, AK – Tokeen SPBase |
| TKJ | United States | Tok, AK – Tok Junction |
| TLA | United States | Teller, AK – Teller |
| TLF | United States | Telida, AK – Telida |
| TLH | United States | Tallahassee, FL – Tallahassee Regional |
| TLJ | United States | Takotna, AK – Tatalina LRRS |
| TLR | United States | Tulare, CA – Mefford Field |
| TLT | United States | Tuluksak, AK – Tuluksak |
| TMA | United States | Tifton, GA – Henry Tift Myers |
| TMB | United States | Miami, FL – Kendall-Tamiami Executive |
| TNC | United States | Tin City, AK – Tin City LRRS |
| TNK | United States | Tununak, AK – Tununak |
| TNP | United States | Twentynine Palms, CA – Twentynine Palms |
| TNT | United States | Miami, FL – Dade-Collier Training and Transition |
| TNU | United States | Newton, IA – Newton Municipal |
| TOA | United States | Torrance, CA – Zamperini Field |
| TOC | United States | Toccoa, GA – Toccoa (R.G. LeTourneau Field) |
| TOG | United States | Togiak, AK – Togiak |
| TOI | United States | Troy, AL – Troy Municipal |
| TOL | United States | Toledo, OH – Toledo Express |
| TOP | United States | Topeka, KS – Philip Billard Municipal |
| TOR | United States | Torrington, WY – Torrington Munl |
| TPA | United States | Tampa, FL – Tampa Intl. |
| TPF | United States | Tampa, FL – Peter O. Knight |
| TPH | United States | Tonopah, NV – Tonopah |
| TPL | United States | Temple, TX – Temple, Draughon-Miller Central Texas Regional |
| TRH | United States | Trona, CA – Trona |
| TRI | United States | Blountville, TN – Tri-Cities Regional TN/VA |
| TRL | United States | Terrell, TX – Terrell Munl |
| TRM | United States | Thermal/Palm Springs, CA – Jacqueline Cochran Rgnl |
| TRX | United States | Trenton, MO – Trenton Munl |
| TSG | United States | Tanacross, AK – Tanacross |
| TSM | United States | Taos, NM – Taos Regional |
| TSP | United States | Tehachapi, CA – Tehachapi Munl |
| TSS | United States | New York City, – East 34th Street Heliport |
| TTD | United States | Troutdale, OR – Portland-Troutdale |
| TTN | United States | Trenton, NJ – Trenton Mercer |
| TTO | United States | Britton, SD – Britton Munl |
| TUL | United States | Tulsa, OK – Tulsa Intl. |
| TUP | United States | Tupelo, MS – Tupelo Regional |
| TUS | United States | Tucson, AZ – Tucson Intl. |
| TVC | United States | Traverse City, MI – Cherry Capital |
| TVF | United States | Thief River Falls, MN – Thief River Falls Regional |
| TVI | United States | Thomasville, GA – Thomasville Regional |
| TVL | United States | South Lake Tahoe, CA – Lake Tahoe |
| TWA | United States | Twin Hills, AK – Twin Hills |
| TWD | United States | Port Townsend, WA – Jefferson County Intl. |
| TWE | United States | Taylor, AK – Taylor |
| TWF | United States | Twin Falls, ID – Twin Falls |
| TXK | United States | Texarkana, AR – Texarkana Regional |
| TYE | United States | Tyonek, AK – Tyonek |
| TYR | United States | Tyler, TX – Tyler Pounds Field |
| TYS | United States | Knoxville, TN – McGhee Tyson |
| TYZ | United States | Taylor, AZ – Taylor |
| UBS | United States | Columbus, MS – Columbus-Lowndes Cnty |
| UCA | United States | Utica, NY – Oneida Cnty |
| UCC | United States | Mercury, NV – Yucca Airstrip |
| UCE | United States | Eunice, LA – Eunice |
| UCY | United States | Union City, TN – Everett-Stewart |
| UDD | United States | Palm Springs, CA – Bermuda Dunes |
| UES | United States | Waukesha, WI – Waukesha County |
| UGB | United States | Pilot Point, AK – Ugashik Bay |
| UGI | United States | Uganik Isl, AK – San Juan Uganik Seaplane Base |
| UGN | United States | Waukegan, IL – Waukegan Regional |
| UGS | United States | Ugashik, AK – Ugashik |
| UIL | United States | Forks, WA – Quillayute |
| UIN | United States | Quincy, IL – Quincy Regional |
| UKI | United States | Ukiah, CA – Ukiah Municipal |
| UKN | United States | Waukon, IA – Waukon Munl |
| UKT | United States | Quakertown, PA – Quakertown |
| ULM | United States | New Ulm, MN – New Ulm Munl |
| UMM | United States | Summit, AK – Summit |
| UMT | United States | Umiat, AK – Umiat |
| UNK | United States | Unalakleet, AK – Unalakleet |
| UNU | United States | Juneau, WI – Dodge Cnty |
| UOS | United States | Sewanee, TN – Franklin Cnty |
| UOX | United States | Oxford, MS – University-Oxford |
| UPP | United States | Hawi, HI – Upolu |
| USA | United States | Concord, NC – Concord Rgnl |
| UST | United States | St. Augustine, FL – Northeast Florida Regional |
| UTM | United States | Tunica, MS – Tunica Munl |
| UTO | United States | Utopia Creek, AK – Indian Mountain LRRS |
| UUK | United States | Kuparuk, AK – Ugnu-Kuparuk |
| UVA | United States | Uvalde, TX – Garner Field |
| UWA | United States | Ware, MA – Ware |
| VAD | United States | Valdosta, GA – Moody AFBase |
| VAK | United States | Chevak, AK – Chevak |
| VBG | United States | Lompoc, CA – Vandenberg AFBase |
| VCB | United States | Vacaville, CA – Nut Tree |
| VCT | United States | Victoria, TX – Victoria Regional |
| VCV | United States | Victorville, CA – Southern California Logistics |
| VDI | United States | Vidalia, GA – Vidalia Rgnl |
| VDZ | United States | Valdez, AK – Valdez |
| VEE | United States | Venetie, AK – Venetie |
| VEL | United States | Vernal, UT – Vernal Regional |
| VEX | United States | Tioga, ND – Tioga Munl |
| VGT | United States | North Las Vegas, NV – North Las Vegas Air Terminal |
| VHN | United States | Van Horn, TX – Culberson Cnty |
| VIH | United States | Rolla, MO – Rolla Ntnl |
| VIS | United States | Visalia, CA – Visalia Municipal |
| VJI | United States | Abingdon, VA – Virginia Highlands |
| VKS | United States | Vicksburg, MS – Vicksburg Munl |
| VLA | United States | Vandalia, IL – Vandalia Munl |
| VLD | United States | Valdosta, GA – Valdosta Regional |
| VLE | United States | Valle/Grand Canyon, AZ – J.T. Robidoux |
| VNC | United States | Venice, FL – Venice Municipal |
| VNY | United States | Van Nuys, CA – Van Nuys |
| VOK | United States | Camp Douglas, WI – Volk Field |
| VPS | United States | Fort Walton Beach, FL – Destin-Fort Walton Beach |
| VPZ | United States | Valparaiso, IN – Porter County Regional |
| VQS | United States | Vieques Isl, PR – Antonio Rivera Rodriguez |
| VRB | United States | Vero Beach, FL – Vero Beach Municipal |
| VRS | United States | Versailles, MO – Roy Otten Memorial Airfield |
| VSF | United States | Springfield, VT – Hartness State |
| VTN | United States | Valentine, NE – Miller Field |
| VUO | United States | Vancouver, WA – Pearson Field |
| VYS | United States | Peru, IL – Illinois Valley Regional Airport-Walter A Duncan Field |
| WAA | United States | Wales, AK – Wales |
| WAH | United States | Wahpeton, ND – Harry Stern |
| WAL | United States | Wallops, VA – Wallops Flight Facility |
| WAS | United States | Washington, DC – All airports |
| WAY | United States | Waynesburg, PA – Greene Cnty |
| WBB | United States | Stebbins, AK – Stebbins |
| WBQ | United States | Beaver, AK – Beaver |
| WBR | United States | Big Rapids, MI – Roben-Hood |
| WBU | United States | Boulder, CO – Boulder Municipal |
| WBW | United States | Wilkes-Barre, PA – Wilkes-Barre Wyoming Valley |
| WCR | United States | Chandalar Lake, AK – Chandalar Lake |
| WDG | United States | Enid, OK – Enid Woodring Regional |
| WDR | United States | Winder, GA – Barrow County |
| WEA | United States | Weatherford, TX – Parker Cnty |
| WFB | United States | Ketchikan, AK – Ketchikan Harbor SPBase |
| WFK | United States | Frenchville, ME – Northern Aroostook Rgnl |
| WGO | United States | Winchester, VA – Winchester Regional |
| WHD | United States | Hyder, AK – Hyder SPBase |
| WHP | United States | Los Angeles, CA – Whiteman |
| WHT | United States | Wharton, TX – Wharton Rgnl |
| WJF | United States | Lancaster, CA – General Wm J Fox Airfield |
| WKK | United States | Aleknagik, AK – Aleknagik /New |
| WKL | United States | Waikoloa Village, HI – Waikoloa Heliport |
| WLD | United States | Winfield/Arkansas City, KS – Strother Field |
| WLK | United States | Selawik, AK – Selawik |
| WLM | United States | Waltham, MA – Prospect Hill Heliport |
| WLR | United States | Loring, AK – Loring SPBase |
| WLW | United States | Willows, CA – Willows-Glenn Cnty |
| WMC | United States | Winnemucca, NV – Winnemucca Munl |
| WMH | United States | Mountain Home, AR – Ozark Regional |
| WMK | United States | Meyers Chuck, AK – Meyers Chuck Seaplane Base |
| WMO | United States | White Mountain, AK – White Mountain |
| WNA | United States | Napakiak, AK – Napakiak |
| WNC | United States | Tuxekan, AK – Naukati Bay SPBase |
| WOW | United States | Willow, AK – Willow |
| WPO | United States | Paonia, CO – North Fork Valley |
| WRB | United States | Warner Robins, GA – Robins AFBase |
| WRG | United States | Wrangell, AK – Wrangell |
| WRI | United States | Wrightstown, NJ – McGuire AFBase |
| WRL | United States | Worland, WY – Worland Municipal |
| WSD | United States | White Sands, NM – Condron AAField |
| WSG | United States | Washington, PA – Washington County |
| WSH | United States | Shirley, NY – Brookhaven |
| WSM | United States | Wiseman, AK – Wiseman |
| WSN | United States | South Naknek, AK – South Naknek |
| WST | United States | Westerly, RI – Westerly State |
| WSX | United States | Westsound/Orcas Isl, WA – Westsound Seaplane Base |
| WTK | United States | Noatak, AK – Noatak |
| WTL | United States | Tuntutuliak, AK – Tuntutuliak |
| WTR | United States | Whiteriver, AZ – Whiteriver |
| WVI | United States | Watsonville, CA – Watsonville Municipal |
| WVL | United States | Waterville, ME – Waterville Robert Lafleur |
| WWA | United States | Wasilla, AK – Wasilla |
| WWD | United States | Wildwood, NJ – Cape May |
| WWP | United States | North Whale Pass, AK – North Whale Seaplane Base |
| WWR | United States | Woodward, OK – West Woodward |
| WWT | United States | Newtok, AK – Newtok |
| WYB | United States | Yes Bay, AK – Yes Bay Lodge SPBase |
| WYS | United States | West Yellowstone, MT – Yellowstone |
| XES | United States | Lake Geneva, WI – Grand Geneva Resort |
| XMD | United States | Madison, SD – Madison Munl |
| XNA | United States | Fayetteville/Springdale, AR – Northwest Arkansas Regional |
| XPR | United States | Pine Ridge, SD – Pine Ridge |
| XSD | United States | Tonopah, NV – Tonopah Test Range |
| YAK | United States | Yakutat, AK – Yakutat |
| YIP | United States | Detroit, MI – Willow Run |
| YKM | United States | Yakima, WA – Yakima Air Terminal |
| YKN | United States | Yankton, SD – Chan Gurney Munl |
| YNG | United States | Youngstown/Warren, OH – Youngstown-Warren Regional |
| YUM | United States | Yuma, AZ – Yuma Intl. |
| ZNC | United States | Nyac, AK – Nyac |
| ZPH | United States | Zephyrhills, FL – Zephyrhills Municipal |
| ZTF | United States | Stamford, CT – Stamford Transportation Center |
| ZWI | United States | Wilmington, DE – Joseph R. Biden Jr. Railroad Station |
| ZZV | United States | Zanesville, OH – Zanesville Municipal |
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